e/Black note

Information
has gloss	eng: On keyboard instruments, a black note is one of the smaller keys that stand above the white notes. All the black notes found within an octave form a pentatonic scale . Black notes can be referred to as sharps of the white note below, or as flats of the white note above. In keyboard percussion instruments with a layout similar to that of the piano, the corresponding notes are often also called "the black notes" even though in reality the bars producing those notes are of the same color as the rest of the instrument's bars.
lexicalization	eng: black note
instance of	(noun) a musical instrument that is played by means of a keyboard keyboard instrument