Pop music manager Ady Semel briefly crossed over from the business to the musical side of things when he collaborated with one of his clients, Scott Walker, on some of the songs on Walker's 1970 album 'Til the Band Comes In. The Israeli Semel had become successful in England with singers Esther and Abi Ofarim, who had a #1 hit in the UK in 1968 with "Cinderella Rockerfella." Semel took over Walker's affairs for a few years in the beginning of the 1970s. He cowrote (with Walker) all of the original material on 'Til the Band Comes In, an inconsistent but interesting album with Walker's characteristic mix of crooning pop vocals, easy listening instrumentation, and morose, lonesome lyrics.
Given Semel's lack of musical and songwriting experience, it was probably the case that Walker was more responsible for the songs than his manager was. At the time, Walker told the British press, "He acts as my censor, vetting all my lyrics and striking out the words likely to harm old ladies." Semel was also probably responsible for handing over one of the vocals on the album to Esther Ofarim (for "Long About Now"), a strange thing to do on a record by a solo singer. A rough equivalent would be a Bob Dylan album on which one of the songs was sung by Ofra Haza, rather than Dylan.
Semel also managed the Walker Brothers for a while in the mid-1970s, during the group's brief reunion and comeback. He retired from the music business after 1976, when the Walker Brothers left to be managed by David Apps.