Crossword clues for the word: ALTOCLEF The word ALTOCLEF has appeared as an answer to at least 7 crossword clues on different crossword puzzles. Crossword clues for ALTOCLEF Showing 1 to 7 of 7 results Clue(s) Feature of a violist's sheet music Feature of viola music Middle C sign. Symbol on a violist's sheet music Symbol on viola music Symbol on viola sheet music Viola staff starter