Right now, we use unique methods to return the low/high level data for a single recording that is requested in the get_low_level and get_high_level endpoints:

https://github.com/metabrainz/acousticbrainz-server/blob/master/webserver/views/api/v1/core.py#L33

Since the single recording endpoints are really just special cases of the bulk get, we should be able to use those queries and remove the existing methods load_low_level and load_high_level https://github.com/metabrainz/acousticbrainz-server/blob/master/db/data.py#L359