tonal
adjective /ˈtəʊnl/
/ˈtəʊnl/
- (specialist) relating to tones of sound or colour
- (music) having a particular key opposite atonal
Word Originlate 18th cent. (designating church music in plainsong mode): from medieval Latin tonalis, from Latin tonus, from Greek tonos ‘tension, tone’, from teinein ‘to stretch’.