In the early 1980s, he was head of A&R for PolyGram Records and signed new-age artists including Vangelis, Jean Michel Jarre, and Kitaro as well as resigning ABBA and the Who.

Nightingale (2015) features the Italian folk singer Giuditta Scorcelletti and her husband producer/guitarist Alessandro Boingi, with lyrics by David George.

They are Pedro Cartas (violin), Joe Powers (harmonica), Dan Nicholas (guitar), Billy White (guitar)and David Mendoza-Diaz (violin), and Alfredo Muro (guitar) In 2019, Triope, a classical trio in Korea released The Most Beloved Melodies of Michael Hoppe CD arranged by Sehwan Park, and performed by Jiyoung Yun (violin) and Youngmin Kim (cello) with Sehwan Park (piano).

with Prague Symphony, Martin Tillman, Heidi Fielding, Dwain Briggs, Kenton Youngstrom, Harold Moses, Eugene Fodor, Andrea Bauer, and Vangelis.

"Prayer for Peace" narrated and written by Jane Goodall "Tell Death I Am Not Here" choral work with poetry by Lilly Peter.