seems like your shutter speed was really low. i do a fair bit of shooting with house lighting and i know the problem. i usually end up shooting at 3200 ISO which makes for a really grainy image. i think this would be more interesting if you were closer and had a sharper image.
Interesting concept, but the image does not convey the "texture of music" in my mind. I think I know where you were going, but I just don't feel it from this shot.
I agree that music has texture (audibly), but visually this pic just doesn't show any texture of interest. If it's there, it's too far away to appreciate. Closer next perhaps? I think you've captured a good "mood" here, though. :)
Even if I bought into the concept (texture in photography pretty much HAS to be visual), the focus and color balance just aren't there. Maybe a speaker grill or sheet music as texture?
Don't understand why this is in this challenge - even were it in focus (and there's no reason, with this kind of event, that it has to be) I don't see that there would be any texture here, not really. Your title encourages me to see a 'different' kind of texture, I think - but I'm afraid I think that is not the point.
I like the silouette frame and the color, but I would have worked very hard on improving the focus of the musicians. Please note: this might just be me, I never seem to like soft focus (on anything.)