Assertion: accordion's reed | /r/HasProperty | involved reed
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Source sentences:
text: Re-tuning, i.e., altering the basic tuning by tuning all the reeds to a different A, or changing a dry tuned accordion to wet (see the chapter on Tuning Musette Reeds), is a much bigger job than spot tuning, as many more reeds are involved and you will probably have to take the reeds out of the reed block for the first stage of tuning.