Alessandroni is probably best known for his characterstic whistling on Ennio Morricone's spaghetti soundtracks. Apart from that he was also one of the few sitar players at the time, guitar player, composer, arranger and the founder of the chorus group "I Cantori Moderni" that was featured on a lot of italian soundtracks of the 60s. In the early 70s he had the opportunity to record a "solo" album, not a score, with a big orchestra without any restrictions (which means it didn't had to fit the mood of a film). The result was "Prisma Sonoro" and it's very Morricone-esque stylewise and regarding the texture of the music with lush strings, horns, wordless vocals,harpsicords etc. Unfortunately it's scarcely available on vinyl, but the track "Punti di vista" was issued as "A spanish village" as a bonus track on the Hexacord release "Di Tresette Ce N'E' Uno Tutti Gli Altri Son Nessuno & Other Western Themes".