user can`t  TAP again until the music stops

Hey Gal,

If all your music runs from the same audio component, you can write a script to check if music is playing before playing another track

//@input Component.AudioComponent audio

//if is not playing, play
if(!script.audio.isPlaying())
{
    //*put your script that picks a random song*

    script.audio.play(1);
}

For more info, check out the audioComponent API  and the Audio Guide

Cheers,
Vincent