nsfw:racy: Possible ocr: High andlow Sounds When youreadmusic you needtoknove how HIGH.OPLOW each note is. This - IS calledthe PITCHorthe note. The: sisn at the beginning of the musio 15 calleda CLEF MUsK for, highinstruments, Ikerecorders, always has a treble, clef. TREELE CLEF