RE: maple or spruce?
Maple, Pine, Bass, etc.
Maple is a deciduous HARDWOOD, so is the Bass but no where near the hardness of the maple.
PINE is an EVERGREEN, soft, and sappy.
An alternative that is readily available and a split between both ends is POPLAR. A DECIDUOUS tree, but is considared to be a medium hardwood. It's a lot like bass.
marwen1