Critically acclaimed as Van Vliet's magnum opus, Trout Mask Replica was released in June 1969 on Frank Zappa's newly formed Straight Records label. By this time, the Magic Band had enlisted bassist Mark Boston, a friend of French and Harkleroad. Van Vliet had also begun assigning nicknames to his band members, so Harkleroad became "Zoot Horn Rollo", and Boston became "Rockette Morton", while John French assumed the name "Drumbo", and Jeff Cotton became "Antennae Jimmy Semens". Van Vliet's cousin Victor Hayden, "The Mascara Snake", performed as a bass clarinetist Van Vliet wanted the whole band to "live" the Trout Mask Replica album. The group rehearsed Van Vliet's difficult compositions for eight months, living communally in a small rented house in the Woodland Hills suburb of Los Angeles. Van Vliet implemented his vision by asserting complete artistic and emotional domination of his musicians. At various times one or another of the group members was put "in the barrel," with Van Vliet berating him continually, sometimes for days, until the musician collapsed in tears or in total submission to Van Vliet. Drummer John French described the situation as "cultlike and a visiting friend said "the environment in that house was positively Manson-esque." Their material circumstances also were dire. With no income other than welfare and contributions from relatives, the group survived on a bare subsistence diet, and were even arrested for shoplifting food (with Zappa bailing them out). French has recalled living on no more than a small cup of beans a day for a month. A visitor described their appearance as "cadaverous" and said that "they all looked in poor health." Band members were restricted from leaving the house and practiced for 14 or more hours a day.
Physical assaults were encouraged at times, along with verbal degradation. Beefheart spoke of studying texts on brainwashing at a public library at about this time, and appeared to be applying brainwashing techniques to his bandmembers: sleep deprivation, food deprivation, constant negative reinforcement, and rewarding bandmembers when they attacked each other or competed with each other. At one point Cotton ran from the house and escaped for a few weeks, during which time Alex Snouffer filled in for him and helped to work up "Ant Man Bee". French, who had thrown a metal cymbal at Cotton, ran after him yelling that he too wanted to come. Cotton later returned to the house with French's mother, who took him away for a few weeks, however he later felt compelled to return as did Cotton. Mark Boston at one point hid clothes in a field across the street, planning his own getaway.
John French's 2010 book Through the Eyes of Magic describes some of the "talks" which were initiated by his actions such as being heard playing a Frank Zappa drum part ("The Blimp (mousetrapreplica)") in his drumming shed, and not having finished drum parts as quickly as Beefheart would have liked. French writes of being punched by band members, thrown into walls, kicked, punched in the face by Beefheart hard enough to draw blood, being attacked with a sharp broomstick, and eventually of Beefheart threatening to throw him out of an upper-floor window. He admits complicity in similarly attacking his bandmates during "talks" aimed at them. In the end, after the album's recording, French was ejected from the band by Beefheart throwing him down a set of stairs with violence, telling him to "Take a walk, man" after not responding in a desired manner to a request to "play a strawberry" on the drums. Beefheart installed a hanger-on, Jeff Bruschelle, as the new Drumbo (playing on French's drumset) and did not include French's name anywhere on the album credits as a player or arranger.
from the Wikipedia