Mannheim Steamroller released "Fresh Aire IV" December 15, 1981. It was the first album I bought from them after hearing a selection from Fresh Aire III, "Mere Image", the previous fall at a fraternity keg party (it was a music fraternity!). I couldn't find III so I settled for IV and consider it one of the best purchases I've ever made. Despite the fact that I do not like the last two tracks after "Dancing Flames" my all-time favorite non-Christmas song.
