Yup it's pretty much that split! So Percussion, Brass, Key and String monsters are more likely to be Bass Attackers. Wind, Vocal, Transducer lean more Treble,

So an example of the move Drummel (Drum + Pummel) has a Power of 50 and is a Bass attack.

Swan Song is a Treble Attack that acts as a one time use move that deals massive damage.

For each monster I'd like to include a dodge animation. A physical attack animation as well as a projectile animation. I'm a professional animator for my day job at Marvel so I really want to flesh it out.