How do you make a song last longer and sound more interesting? I call it the three-minute rule. A song needs to last at least three minutes for it to register in the listener’s ears. That’s my rule, after testing my audiences in a variety of settings. A short piece simply doesn’t register. How to you prolong and add variety to a song? This happens often in our ukulele jam sessions, in which we prepare for our gigs. Here are some ideas for all songs, whether you accompany with ukulele, guitar, or piano.