I would like to upload my own music audio tracks, and turn them into looping tracks.

Additionally, I wish I could choose the exact length that I want the track to be down to the second, since I'd like the audio to complement the length of the content in my video.

I need to loop the audio multiple times in order to lengthen the track as much as is needed, and then finish off the track by attaching its ending. Depending on the track, I may also need to apply fading to the beginning and end of the track, and control where the fading starts and where it ends.

Even though Trebble is more of a tool for editing speech in podcasts & voiceovers, background music is an important part of making speech sound more interesting. So, I wish there was a quick & easy way to make background music a suitable length for the podcast/voiceover or video that it is going to be used on. In order to do this, we need to be able to loop the audio seamlessly, and do so in a way that won't require too much technical knowledge on how to edit audio tracks.