I sent you an email about this but... firstly, make a red color neon theme id love it! Secondly.... I do this simply by partially unplugging my headphones from jack just so it would cut out parts.. Have an option to disable parts of each track so you can listen to whatever part of the track you want. Options being able to remove vocals, bass, guitar, drums, keyboards, whatever.. for instance, there's a computer program called audicity, you can split the track, invert the bottom half than switch from stereo to mono, than you play both parts of the track and it will remove certain parts.. I do i