Hayden was a cousin of
Don Van Vliet, better known as Captain Beefheart. Hayden joined Beefheart's
Magic Band as guest bass clarinet player in 1968, but is heard only on the 1969 album
Trout Mask Replica. He can also be heard on one of the sections of dialogue interpolated between the album's tracks, in which he and Beefheart agree that some unknown thing is "fast and bulbous". He appeared on stage with the band at the Amougies Festival in
Mont-de-l'Enclus, Belgium, in October 1969, where they were recorded playing two compositions in the film
Music Power. In
Pamela Des Barres' memoir ''
I'm with the Band'', she mentions that Hayden befriended her while she was in high school, introducing her to his cousin Beefheart and asking her to be the president of the local chapter of the Beefheart fan club. Also, Des Barres and Hayden worked together at a factory in Van Nuys, California, to support their love of rock music (especially
the Rolling Stones, whom they eventually met). Des Barres described Hayden as "living among the Redwoods", dropping out of mainstream society completely, while also citing him as an important influence on her life. == Later works ==