Most have detailed liner notes on their back covers, analyzing the compositions and providing a biography of the composer, in a format typical of classical music albums, and much of the material can be regarded as 20th-century classical music.
The label provided a venue for experimental music.
The first seven albums were issued on the Obscure label in 1975 and 1976, manufactured and distributed in the UK by Island Records whose name appeared at the bottom of the label.
These have a catalogue number expressed as "Obscure no.
All albums use the original, mostly black, cover art.