"Ukulele" ;). For playing chords or scales? I never used an ukulele, but
tuning for chords is more important, than for playing melodies. Octave
uncleanness of the instrument is less important for tunes, but a PITA
for chord comping. Fortunately I prefer power chords over suspended
chords, IMO tuning already is a PITA when playing punk-rock, but at
least an issue for jazz comping.