Musical study (5)
I believe the answer is:
etude
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">musical study</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for etude that I've seen before include "Testing musical composition" , "Noted composition" , "bit of practice" , "(Musical) study" , "short musical piece" .)