AddmusicK moves the jump sound effect. If you're using it, you should change this line:
to
Code
!JumpSFX = $01 ; Regular jump sound effect. 1DFA !JumpSFXPort = $1DFA
to
Code
!JumpSFX = $2B ; Regular jump sound effect. 1DF9 !JumpSFXPort = $1DF9