I use both. The band saw is more versatile, you can put a fence on it and use it to re-cut wood blocks and rough cut scales, but the scroll saw is much more precise. I have not used the scroll to cut scales. I cut the rough shape on the band saw, and then do the shaping on the big belt sander or the osculating drum sander. I will cut the scales from a single block, sand to shape then put the fence on the band saw and split the blank into two scales, then hand sand to finish. The scroll saw cuts slower but makes very precise cuts for delicate scroll work. Either would work, but if I had to pick one, the band saw would be my choice.