I love the Smart Scroll in the Song Tab of GuitarTuna. It is THE best thing I have come across to date, and I have tried many different options. One suggested feature I would like to make is to combine voice recognition to the AI Smart Scroll as often there are similar chords being played throughout a song and Smart Scroll can at times pick up on these further down the song, which means, I have to manually scroll back to the place I was previously at.