1 day

very rare

this normal looking tophat can house an infinite amount of objects as long as these objects are instruments. Size or weight of the instrument does not matter.
One can store an instrument into the tophat by saying the first keyword chosen by the maker and pointing the bottom at the instrument.
One can summon an instrument from the tophat by saying the second keyword chosen by the maker followed by the name of the instrument.
If a type of instrument is stored in the tophat more than once the tophat will give either one of these by random selection.

A keyword can be changed through a special procedure that requires a songbird's feather, two keys, 30 gold coins, four strings of a lute and an hour-long musical performance.

Bard

I.M.I.T.H. (imif)
Infinite Musical Instruments TopHat

magic subplane

this normal looking tophat can house an infinite amount of objects as long as these objects are instruments.
size or weight of the instrument does not matter

black velvet with a dark grey bow

30 g

One can store an instrument into the tophat by saying the first keyword chosen by the maker and pointing the bottom at the instrument. upon speaking this keyword the tophat 'sucks' in the instrument.
One can summon an instrument from the tophat by saying the second keyword chosen by the maker followed by the name of the instrument.
If a type of instrument is stored in the tophat more than once the tophat will give either one of these by random selection.

a keyword can be changed through a special procedure that requires a songbird's feather, two keys, 30 gold coins, four strings of a lute and an hour-long musical performance.
Malin uses the keywords Roi d'or je t'appelle and grêle tempête de chuchotements which are really more keyphrases.