"Barry Altschul (born January 6, 1943, New York City)[1] is a free jazz and hard bop drummer who gained fame in the late 1960s with the pianists Paul Bley and Chick Corea.

Altschul, having initially taught himself to play drums, studied with Charlie Persip during the 1960s. In the latter part of the decade, he performed with Paul Bley. In 1969 he joined with Chick Corea, Dave Holland and Anthony Braxton to form the group Circle. At the time, he made use of a high-pitched Gretsch kit with add-on drums and percussion instruments, which he integrated seamlessly in a whirlwind of sound.

In the 1970s Altschul worked extensively with Anthony Braxton's quartet featuring Kenny Wheeler, Dave Holland, and George Lewis. Braxton, signed to Arista Records, was able to secure a large enough budget to tour with a collection of dozens of percussion instruments, strings and winds. In addition to his participation in ensembles featuring avant-garde musicians, Altschul performed with Lee Konitz, Art Pepper and other "straight ahead" jazz performers.

Altschul also made albums as a leader, but after the mid-1980s he was rarely seen in concert or on record, spending much of his time in Europe. Since the 2000s, he has become more visible, with two sideman appearances on the CIMP label with the FAB trio (with Billy Bang and Joe Fonda), the Jon Irabagon Trio recording "Foxy", and the bassist Adam Lane. Altschul has played or recorded with many musicians, including Roswell Rudd, Dave Liebman, Barre Phillips, Denis Levaillant, Andrew Hill, Sonny Criss, Hampton Hawes, and Lee Konitz."-Wikipedia

"David Izenzon (May 17, 1932 Ð October 8, 1979) was an American jazz double bassist.

Izenzon was born in Pittsburgh, Pennsylvania, United States. He graduated from the Carnegie Institute of Technology, now Carnegie Mellon University, and later received a master's degree from the Manhattan School of Music.

Izenzon began playing double bass at the age of twenty-four. He played in his hometown before moving to New York City in 1961 where he played with Paul Bley, Archie Shepp, Sonny Rollins, and Bill Dixon. He is best known for his association with Ornette Coleman, which began in October 1961. He played in Coleman's Town Hall, 1962 concert and played with him frequently from 1965 to 1968, often in a trio format with drummer Charles Moffett. During this time, Izenzon also recorded with Harold McNair and Yoko Ono. From 1968 to 1971, he taught music history at Bronx Community College and played with Perry Robinson and Paul Motian, but reduced his time in music in 1972 when his son became ill. In 1973 Izenzon received a Ph.D. in psychotherapy from Northwestern University. The following year, he co-founded Potsmokers Anonymous with his wife, Pearl. In 1975 he composed a jazz opera entitled How Music Can Save the World, dedicated to those who helped his son recover. From 1977, Izenzon worked again with Coleman and Motian, up until his death in 1979.

Izenzon had a heart attack and was dead on arrival at Bellevue Hospital in New York City. He was survived by his wife and two sons. "

"Perry Morris Robinson (born September 17, 1938) is an American jazz clarinetist and composer. He is the son of the composer Earl Robinson.

Robinson was born and grew up in New York City. He attended the Lenox School of Jazz in Massachusetts in the summer of 1959. Robinson served in a U.S. military band in the early 1960s. His first record, Funk Dumpling (with Kenny Barron, Henry Grimes, and Paul Motian) was recorded in 1962. He also appeared with Grimes on The Call in 1965, on the ESP-Disk label (ESP 1026). Although the album is credited to "Henry Grimes Trio" the album liner notes, written by ESP-Disk label head Bernard Stollman, state: "[Grimes] chose Perry Robinson, a virtuoso who merits far wider recognition, to pair with, and this recording reflects both of their contributions, in equal measure. A more accurate title for the album would be Henry Grimes/Perry Robinson." Two of the album's six songs are credited to Robinson, including the title track. An LP copy of this album can be seen hanging on the wall of the protagonist's apartment in the 2006 film Half Nelson.

Since 1973 he has worked with Jeanne Lee and Gunter Hampel's Galaxie Dream Band. He contributed to Dave Brubeck' s Two Generations of Brubeck and played with Burton Greene' s Dutch klezmer band Klezmokum. He was the featured clarinetist on Archie Shepp's LP Mama Too Tight on Impulse Records. He has led his own groups in performances and on record, with albums on the Chiaroscuro, WestWind, and Timescraper labels. More recently, he worked with William Parker and Walter Perkins on Bob's Pink Cadillac and several discs on the CIMP label.

From 1975 until 1977, Robinson was member of a band called Clarinet Contrast, featuring German clarinet players Theo Jörgensmann and Bernd Konrad. He has recorded with Lou Grassi as a member of his PoBand since the late Nineties, and with Lou Grassi, Wayne Lopes and Luke Faust in The Jug Jam, an improvisational jug band. He plays in a free jazz and world music trio along with tabla player Badal Roy and bassist Ed Schuller, with whom he recorded the CD Raga Roni. He has played with Darius Brubeck and Muruga Booker in the MBR jazz trio. Robinson also played an integral part in the formation of Cosmic Legends, an improvisational music/performance group led by composer/pianist Sylvie Degiez which included musicians Rashied Ali, Wayne Lopes, Hayes Greenfield, and Michael Hashim. In 2005 he was featured on his cousin Jeffrey Lewis' album City and Eastern Songs on Rough Trade Records, produced by Kramer. His most recent release was OrthoFunkOlogy in 2008 with the band Free Funk, also featuring Muruga Booker, Badal Roy, and Shakti Ma Booker.

His autobiography, Perry Robinson: The Traveler (co-authored by Florence F. Wetzel), was published in 2002."