It's somewhat new territory bringing this 3D prop into the pipeline and adding a bit of an extra step to the process but I really can't imagine trying to animate that bass any other way. Here's a couple of the most recent shots with the bass added:
^^^This is actually a newer shot just finished by Jordan Eugene.^^^
These other shots I've shown before but it really adds something when you have the bass. Now we will take the rough animation with the model animation and trace clean lines on top of both for the final effect.