( a. )
Pertaining to, made by, or prepared for, an instrument, esp. a musical instrument; as, instrumental music, distinguished from vocal music.
( a. )
Pertaining to, made by, or prepared for, an instrument, esp. a musical instrument; as, instrumental music, distinguished from vocal music.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012