Beethoven Music was at Emerald Hill (currently Taka Jewellery) before moving to Centrepoint.
The other record shops in Orchard before the era of Tower/HMV and Grammophone were Sing Disc Sound (Raffles City, Lucky Plaza and a basement corner within CK Tang), Supreme Records (Plaza Sing and Centrepoint), Song Ching/Yi Ching at Wisma, and one at Orchard Emerald which I have forgotten the name.
In the early 90s, the all time fav was Hi Fi Corner in Adelphi, with its weekly Saturday Straits Times Classfified Column attacking its rival, Sembawang Music, free "coffee or tea Sir?", large trying before you buy corner with 20 CD players and young attractive promoters/cashiers. I wonder what happened to the HKies owners (Joe) after it closed down.