Make Allays hum notes/chords for their sounds

Right now, The Allay sound effects sound a bit jarring/eerie. I think, seeing as the Allays love music, they should hum certain notes or chords with the sort of magical sound and high pitch that they already have. For example, when the Allay is given an item, it hums a G chord, while holding it, it hums a D chord, and when it throws the item, it hums a C chord, resolving the progression. If the item is taken off of it before it wants to throw it, it could hum a Cm instead. If there are several Allays near eachother, each one could hum a note to make up a chord. Maybe upon death or getting hurt it can hum a chord that sounds very shocking or upsetting. I'm not very educated in music theory so I'm sure there's a lot more than could be done with this idea but I think it would fit very nicely with the personality of the new mob.