In the 1970s, as youth-oriented rock music overwhelmed jazz in the marketplace, Ojeda moved to Los Angeles, where he wrote arrangements for singers and composed for jingles, TV and film. He played trumpet in the rock musical “Hair” in the early 1970s and performed with the Rolling Stones in 1975, according to his website. In the 1980s, he was a staff arranger for Johnny Carson’s “The Tonight Show.”