You are right, I over-specialized my definition I suppose, but I still stand by my point of this differentiation between instrumental music and lyrical music.
With Instrumental music, the challenge becomes conveying ideas over a non-verbal medium, a challenge which is non-existent in music with heavy lyrical emphasis.
With Instrumental music, the challenge becomes conveying ideas over a non-verbal medium, a challenge which is non-existent in music with heavy lyrical emphasis.