This is extremely niche and not a big deal but I thought it was kinda funny: If a lot of bass notes are doubled up with other notes in quick succession, the bass notes start fading out:
^s ^l=16 ^d n10 kk14 ^d n10 kk14 ^d n10 kk14 ^d n10 kk14 ^d n10 kk14 ^d n10 kk14 ^d n10 kk14 ^d n10 kk14 ^d n10 kk14