It is a pretty good recording considering its age. Around 7.30 mins it is particularly beautiful when they are start the brief tarana at "ham toum tananana, toum tananana
illahi ye jalsa kahan ho raha......."
In the end I found it left me wanting for more as the recording is sadly incomplete. Still it gives you a flavor of what it was like back then. Jazba barda buland tha!