List courtesy of Greta, revised by me.Milano-based label under 103 Edizioni Musicali. I'm guessing they might have skipped #103 due to redundancy.
Other releases under the name "Proposte musicali" were issued under
Capriccio,
103 Centotre and
103 Edizioni Musicali, all belonging to the same publisher.
AIR PM 101 - Proposte musicali Vol. 1 - Bob Genky, music by Massimo Chiodi/Paolo Gennai
AIR PM 102 - Proposte musicali Vol. 2 - Lord Gregory, music by ????
AIR PM 103
AIR-PM 104 - Proposte musicali Vol. 3 - Arnoby Group, music by Arnoby (Luigi Barion)