Listening to modern music and jazz, which sometimes has a crucial inclusion of microtones or pitch bends. Of course its possible to mess around with a digital piano and get a certain sound, but its still not set up in a way that allows for easy manipulation of microtones. And for a regular piano I would assume the only way would be to tune it to a specific way.Are there other formats of keyboard that don't use 12 keys per octave? Seems restrictive, especially when modern music is utilizing microtones a lot more especially with voice.