I managed to implement the Maxtrax Format far enough to be able to play Kyrandia’s tunes, albeit there still are some issues like hanging notes. Which means my timeline still holds up as this state was planned for the end of the week =)
The planned next step would be to improve and integrate the player into the Scummvm so Kyrandia can play its sound and music. This will be an interesting issue, as I learned that the Amiga-Version still isnt running stable and it actually crashes atleast with my version during the intro. So testing sound effects and music wont be easy.