Question: When was the Austrian band formed that made the album Solo?
Related documents: [0]  [DOC] Opus is a pop-rock group from Graz, Austria. Formed in 1973, the group remains active today. The band is chiefly known for its 1985 single release, "Live Is Life", which reached the Top 10 in several European countries. [END] 
[1]  [DOC] Solo is the fifth album by Austrian pop rock band Opus. It was released in 1985. It peaked at #8 on the Ö3 Austria Top 40 Longplay. The first single "Rock on the Rocks", peaked at #21 on the Ö3-Hitparade. The second single, "Idolater", peaked at #24 on the Ö3-Hitparade. [END] 
Answer: 
in 1973
in 1973