Crossword clue: the act of adjusting an organ pipe (or wind instrument) so that it conforms to the standards of tone and pitch and color
1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).
Possible answers
the act of adjusting an organ pipe (or wind instrument) so that it conforms to the standards of tone and pitch and color