The question got posted by mistake, this is in continuation.

One problem is when I run the code, the audio file started playing but I don't know how to stop it, it only stops once the audio is fully played means if the audio is of 3 miniutes it will play for 3 minuites and automatically stops but how can I stop the audio after playing it.

Second, I have multiple mp3 files in the same folder on my system but only 1-2 files gets played but rest don't play while I am following the same procedure, what could be the reason?