helilaad

== Estonian == === Etymology === From heli (“note”) +‎ laad (“quality”). === Noun === helilaad (genitive helilaadi, partitive helilaadi) (music) key ==== Declension ==== This noun needs an inflection-table template. === Further reading === “helilaad”, in [EKSS] Eesti keele seletav sõnaraamat [Descriptive Dictionary of the Estonian Language] (in Estonian) (online version), Tallinn: Eesti Keele Sihtasutus (Estonian Language Foundation), 2009