Could you open a ticket at tickets.metabrainz.org for us to discuss this in more detail? We have a recording count endpoint which returns the user’s top recordings with the play counts, which might be helpful here (https://listenbrainz.readthedocs.io/en/production/dev/api/#get--1-stats-user-(user_name)-recordings). But having a track based endpoint is something we’re open to if it’s really helpful.