Having had a good career as lyricist, singer-songwriter Gianni D'Errico, from Brindisi, released some singles in the early seventies that went unnoticed, and an album that was released only in 1976, after his death (in September 1975, run over by a car). The LP, Antico teatro da camera, is usually considered as one of the best prog-inclined albums by solo artists, and a hard to find one! 
Produced by Equipe 84 leader Maurizio Vandelli (who also acted as producer for the first album by Reale Accademia di Musica), the ten tracks album has some good moments though the tracks are all in the 2-5 minutes range and contain little instrumental breaks, with the sole exception of the opening and closing short instrumental tracks called L'etrusca (part I & II). 

Like in Franco Maria Giannini's LP case this is an album that won't probably satisfy the rich prog sound fans, being more in a classy melodic/soft prog direction.