Crossword clues for the word: SOST The word SOST has appeared as an answer to at least 6 crossword clues on different crossword puzzles. Crossword clues for SOST Showing 1 to 6 of 6 results Clue(s) ___ ped.: piano music instruction "Held, as a tone: Mus. abbr." "Prolonged, in music: Abbr." Direction in music: Abbr. Held for full time value: Mus. abbr. Musical term: Abbr.