BlindChickens Band was Winterfell's, if not the entire Northern Underworld's, most famous band. Their capability was beyond doubt.
As long as someone made a request, they could play any tune.
Their members were:
Main singer Broken Voice, who was mute.
Guitarist One Finger, who was with four broken fingers.
Drummer No Leg, who was with broken legs.
Bass Guitarist Without Arms, who was a hoodlum.
And others.
The main mute singer used his fingers to communicate with his teammates. They adjusted the tune, and the bass guitarist stood out and yelled while the main singer played the bass guitar. The guitarist who had four broken fingers tied a stick to his wrist and stepped on the pedal as he hit the drum according to the rhythm. The drummer with broken legs sat in his wheelchair and played the guitar.