Stems must be the same duration as the original track.

Each stem file must adhere to our technical audio requirements.

Keep stems unmastered and ensure there is no clipping on any files.

You can consolidate multiple instruments into one stem. Some examples:

If you have a group of similar instruments and one of them is a lead instrument, that instrument can be a separate stem. e.g. You have violin, viola, cello, bass. Violin plays lead/melodies. Violin can be one stem and viola, cello, bass can be another stem.

Any instrument you tag will be required to be uploaded as a stem. Check out this article on best tagging practices for more information.

You can export FX busses separately or with its respective tracks.