
Ian Scott Anderson is a Scottish musician, singer and songwriter best known for his work as the lead vocalist, flautist and the acoustic guitarist of the British rock band Jethro Tull. Anderson is a multi-instrumentalist who, in addition to flute, plays keyboards, acoustic and bass guitar, bouzouki, balalaika, saxophone, harmonica, and a variety of whistles. His solo work began with the 1983 album Walk into Light, and since then he has released another five works, including the sequel to the Jethro Tull album Thick as a Brick (1972) in 2012, entitled Thick as a Brick 2.

John Roy Anderson, known professionally as Jon Anderson, is an English-American singer and songwriter best known as the former lead singer of the progressive rock band Yes, which he formed in 1968 with bassist Chris Squire. He was a member of the band across three tenures until 2008. Anderson was also a member of Yes Featuring Jon Anderson, Trevor Rabin, Rick Wakeman.

Richard Philip Henry John Benson is a British-Italian guitarist, singer, music journalist, and actor.

Kim Alexandrovich Breitburg is a Russian composer, singer, keyboardist, author of more than 600 songs, 5 art rock suites and 7 musicals. Breitburg, who first came to prominence as a founder and frontman of the Soviet progressive rock band Dialog (1978–1991) in the later years became a successful mainstream entrepreneur; among his best known projects are the popular reality talent shows "People's Artist", "The Secret of Success" and "The Battle of Choirs".

Don Van Vliet was an American singer, songwriter, multi-instrumentalist, and visual artist best known by the stage name Captain Beefheart. He conducted a rotating ensemble called the Magic Band, with whom he recorded 13 studio albums between 1964 and 1982. His music blended elements of blues, free jazz, rock, and avant-garde composition with idiosyncratic rhythms, absurdist wordplay, and his wide vocal range. Known for his enigmatic persona, Beefheart frequently constructed myths about his life and was known to exercise an almost dictatorial control over his supporting musicians. Although he achieved little commercial success, he sustained a cult following as a "highly significant" and "incalculable" influence on an array of new wave, punk, and experimental rock artists.

Haji Chrismansyah Rahadi, born Christian Rahadi but better known by his stage name of Chrisye, was an Indonesian progressive pop singer and songwriter. In his 40-year career he won many awards and accolades; in 2011 Rolling Stone Indonesia declared him the third-greatest Indonesian musician of all time.

Seth Davis is an American drummer and online educator.

David Fenech is a French composer, guitarist and singer born on 19 July 1969 in Saint-Cloud, Hauts-de-Seine. His style has been described as ʻa kind of punk musique concrèteʼ. He uses the studio as an instrument, using a large panel of recording techniques. He has played and recorded with musicians such as Nurse With Wound, Felix Kubin, Jad Fair, Tom Cora, Rhys Chatham, Pascal Comelade, Jac Berrocal, Ghédalia Tazartès, James Plotkin, Shugo Tokumaru, Ergo Phizmiz, Pierre Bastien, and many others.

Fabio Golfetti is a Brazilian musician and record producer, famous for his work with progressive/psychedelic rock band Violeta de Outono. He is also the guitarist of Franco-British rock band Gong since 2012.

Martin Grech is an English singer, songwriter and musician from Aylesbury, Buckinghamshire.

Jeffrey Hammond, often known by his former stage name Jeffrey Hammond-Hammond, is an artist and retired musician best known for being the bassist of progressive rock band Jethro Tull from 1971 to 1975. With Jethro Tull, Hammond played on some of the band's most successful and well-known albums, including Aqualung (1971) and Thick as a Brick (1972).

Bo Hansson was a Swedish musician best known for his four instrumental albums released in the 1970s.

Annie Haslam is an English vocalist, songwriter, and painter. She is best known as the lead singer of progressive rock band Renaissance since 1971, and for her long and diverse solo singing career. She has a five-octave vocal range. From 2002, Haslam has developed a parallel career as a visual artist, producing paintings on canvas, painted musical instruments, and giclées.

Charles Roger Pomfret Hodgson is an English musician, singer and songwriter, best known as the former co-frontman and founding member of progressive rock band Supertramp. Hodgson composed and sang the majority of the band’s hits such as "Dreamer", "Give a Little Bit", "Take the Long Way Home", "The Logical Song", "It's Raining Again", and "Breakfast in America".
Michał Jelonek, also known as Jelonek, is a Polish musician and composer. He specializes in violin.

Bryan Josh is a multi-instrumentalist who is the founder of British progressive rock band Mostly Autumn. While primarily being the band's lead singer and lead guitarist, he has performed on many other instruments in the studio, which include the bass guitar, piano and keyboards. He, either alone or with other members of the band, has written a large percentage of the band's back catalogue. He also contributed to Mostly Autumn keyboardist Iain Jennings' solo album, Breathing Space where he played two guitar solos.

Flávio Basso, better known by his stage name Júpiter Maçã and by its English-language variation Jupiter Apple, was a Brazilian singer-songwriter, lyricist, guitarist, bassist, percussionist, keyboardist, record producer, film director, actor, screenwriter and former television presenter. Before beginning a prestigious solo career in 1994 he was already known for being a founding member of bands TNT and Os Cascavelletes, both pioneers of the Rio Grande do Sul rock scene in the mid- to late 1980s/early 1990s.

Peter John King was an English jazz saxophonist, composer, and clarinetist.

Rocky Kramer, born Sindre Langhelle; August 3, 1990, is a Norwegian guitarist, singer, songwriter, composer, and bandleader from Trondheim who is now based in Los Angeles, California, United States. In 2018, Kramer became more widely known when he headlined the Seattle Hempfest. The next year, in 2019, he released his debut Album "Firestorm" and was nominated for a Hollywood Music in Media Award. Kramer plays and endorses Fender Stratocaster guitars.

Gregory Stuart Lake was an English singer, songwriter, bassist, guitarist and record producer. He gained prominence as a founding member of the progressive rock bands King Crimson and Emerson, Lake & Palmer (ELP).

Thomas Lang is an Austrian drummer, multi-instrumentalist, composer and record producer. He is the founding member of the Los Angeles-based progressive/avant garde metal band stOrk and is known for his international session work on a wide variety of genres such as rock, pop, jazz, and heavy metal with artists such as Robert Fripp, Peter Gabriel, Robbie Williams and Sugababes, among many others. He is married to music publicist, Elizabeth Lang.
Geddy Lee Weinrib, known professionally as Geddy Lee, is a Canadian musician, singer, and songwriter. He is best known as the lead vocalist, bassist, and keyboardist for the Canadian rock group Rush. Lee joined what would become Rush in September 1968, at the request of his childhood friend Alex Lifeson, replacing original bassist and frontman Jeff Jones. Lee's solo effort, My Favourite Headache, was released in 2000.

Anthony Frederick Levin is an American musician and composer, specializing in electric bass, Chapman Stick and upright bass. He also sings and plays synthesizer. Levin is best known for his work with King Crimson and Peter Gabriel. He was also a member of Liquid Tension Experiment (1997–1999), Bruford Levin Upper Extremities (1998–2000) and HoBoLeMa (2008–2010). He has led his own band, Stick Men, since 2010.

Didier Malherbe, is a French jazz, rock and world music musician, known as a member of the bands Gong and Hadouk, as well as a poet.

Guy Manning is an English multi-instrumentalist and singer, best known for his own album releases and for his membership of progressive rock bands Parallel or 90 Degrees, The Tangent, The United Progressive Fraternity (UPF), Damanek and his own band, Manning.

Neal Morse is an American singer, musician and composer based in Nashville, Tennessee. In 1992, he formed the progressive rock band Spock's Beard with his brother Alan and released an album which was moderately successful. In 1999, he joined former Dream Theater co-founder Mike Portnoy, Flower Kings' Roine Stolt and Marillion's Pete Trewavas to form the super-group Transatlantic. In 2002, Neal Morse became a born again Christian, left Spock's Beard and began a Christian rock solo career, releasing many progressive rock concept albums about his new religious faith. In the meantime, he continued to play with Transatlantic and formed three new bands with Portnoy, Yellow Matter Custard, Flying Colors and The Neal Morse Band.

Nikolai Ivanovich Noskov is a Russian singer and former vocalist of the hard rock band Gorky Park. Five-time winner of the Golden Gramophone. He was also a member of Москва (Moscow) ensemble in the early 1980s, in band Гран-при in 1988 just before joining Gorky Park, and much later in the 1990s in band Николай (Nikolai). Starting 1998 Noskov had a solo career releasing six solo albums. In 2015 he was jury in second season of reality TV series Glavnaya Stsena

Ciro Pessoa Mendes Corrêa, also known by his Dharma name Tenzin Chöpel, was a Brazilian singer-songwriter, lyricist, guitarist, screenwriter, journalist, writer and poet, famous for being one of the founding members of the influential rock band Titãs and for his later work with pioneering post-punk/gothic rock band Cabine C. He also formed numerous other short-lived and lesser known projects throughout the early to mid-1990s before beginning a solo career in 2003.

Dan Pinto is a BMI composer/keyboardist/drummer-percussionist who writes and performs music in the styles of jazz-fusion and orchestral film score and soundtrack. Beginning in 1991, his original music compositions were used for many Robin Leach hosted television shows that ran in syndication for several years including Lifestyles of the Rich and Famous and Runaway with the Rich & Famous. His music was also used for the 1993 syndicated television show World's Best 1992.

Guy Pratt is a British musician, comedian and actor.

Artemios "Demis" Ventouris-Roussos (Greek: Αρτέμιος "Ντέμης" Βεντούρης-Ρούσσος, Greek pronunciation: [arˈtemios ˈdemis venˈduris ˈrusos]. was a Greek vocalist and performer who had an internationally acclaimed career, as a single recording artist and bandleader. As a band member he is best remembered for his work in the progressive rock music act Aphrodite's Child, but as a vocal soloist, his repertoire included hit songs like ‘’Goodbye, My Love, Goodbye’’, ’’From Souvenirs to Souvenirs’’ and ’’Forever and Ever’’.

Todd Harry Rundgren is an American multi-instrumentalist, singer, songwriter, and record producer who has performed a diverse range of styles as a solo artist and as a member of the band Utopia. He is known for his sophisticated and often unorthodox music, his occasionally lavish stage shows, and his later experiments with interactive entertainment. He also produced music videos and was an early adopter and promoter of various computer technologies, such as using the Internet as a means of music distribution in the late 1990s.

Christopher Russell Edward Squire was an English musician, singer and songwriter best known as the bassist, backing vocalist and a founding member of the progressive rock band Yes. He was the longest-serving original member, having remained in the band until his death and appearing on every studio album released from 1969 to 2014. In 2017, he was posthumously inducted into the Rock and Roll Hall of Fame as a member of Yes.

Efstratios Dimitriou, known professionally as Demetrio Stratos, was a Greek-Italian lyricist, multi-instrumentalist, music researcher, and co-founder, frontman, and lead singer of the Italian progressive rock band Area – International POPular Group.

Nad Sylvan is a U.S. born Swedish progressive rock musician and songwriter, who is currently the vocalist in Steve Hackett’s band Genesis Revisited and has also maintained a solo career and collaborations with several other musicians.

Octavian Teodorescu, known professionally as Octave, is a Romanian musician, composer, songwriter and producerfrom Bucharest, Romania. He is a pioneer of electronic music and the use of computers and synthesizers in music in Romania, with a science fiction touch. He also plays guitars, keyboards and programmable instruments.
Niko Tsonev is a Bulgarian-born musician, producer, composer, mixing engineer, and arranger living in London, England. At age four, Tsonev played accordion; later he began playing guitar but only in his early teen years Tsonev began formally taking music theory and guitar lessons. Aged seventeen Niko received a scholarship from Berklee College of Music, however, Tsonev moved to London, England to study Music Production at Lewisham College. At that time (1996) Niko also joined a musician session agency as a freelance guitarist.

Nobuo Uematsu is a Japanese musician and composer, best known for his contributions to the Final Fantasy video game series by Square Enix. A self-taught musician, he began playing the piano at the age of twelve, with English singer-songwriter Elton John as one of his biggest influences. Uematsu joined Square in 1986, where he first met Final Fantasy creator Hironobu Sakaguchi. The two later worked together on many titles at the company, most notably in the Final Fantasy series. After nearly two decades with Square, Uematsu left in 2004 to create his own production company, which included the Dog Ear Records music label. He has since composed music as a freelancer for other games, including ones developed by Square Enix and Sakaguchi's development studio, Mistwalker.

Galen Waling is an American–Canadian dual citizen rock and metal drummer.

George Roger Waters is an English songwriter, singer, bassist, and composer. In 1965, he co-founded the progressive rock band Pink Floyd. Waters initially served solely as the bassist, but following the departure of singer-songwriter Syd Barrett in 1968, he also became their lyricist, co-lead vocalist, and conceptual leader.

John Kenneth Wetton was an English singer, bassist, guitarist, and songwriter. He was born in Willington, Derbyshire, and grew up in Bournemouth, Dorset. Between 1972- 1982, he rose to fame fronting the bands King Crimson, U.K. and Asia. Notable work as a bass guitarist and backing vocalist included brief stints with Family, Roxy Music, Uriah Heep and Wishbone Ash.

Per Jonas Wiberg is the former keyboardist of Swedish progressive death metal band Opeth, and a member of Michael Amott's stoner metal band Spiritual Beggars.

Damian Wilson is an English musician, songwriter and vocalist who has appeared on over 70 separate album releases. Damian is mostly known in the progressive metal genre, as the lead singer of Headspace and (formerly) Threshold. He also sang and toured with bands and projects such as for Star One, Ayreon, Landmarq, Praying Mantis and with Rick Wakeman's English Rock Ensemble. As a solo artist he has released 5 solo albums, a DVD and a retrospective compilation album.

Charles Frederick Kip Winger is an American rock musician, a member of the rock band Winger, and a solo artist. He initially gained notability as a member of Alice Cooper's band, contributing bass and vocals to his Constrictor and Raise Your Fist and Yell albums.