instrumental

US /ˌɪn.strəˈmen.t̬əl/
UK /ˌɪn.strəˈmen.t̬əl/
"instrumental" picture
1.

serving as a means of pursuing an aim or policy

:
He was instrumental in bringing about the peace treaty.
Her research was instrumental in changing public opinion.
2.

relating to or played on a musical instrument

:
The album features several instrumental tracks.
She enjoys listening to classical instrumental music.
1.

a piece of music composed or arranged for instruments only, without vocals

:
The band opened their set with a powerful instrumental.
He prefers to compose instrumentals rather than songs with lyrics.