Release for example

https://musicbrainz.org/release/d6ab94c5-ccee-455d-8bf4-037f20699ee0

At the moment there is no clear distinction when a work is part of a soundtrack, the Part of label is used but unless the reader clicks on the associated link they have no clear indication that it is linking to a Soundtrack work entity type unless someone has added a disambiguation to clarify on the target work entity.

My suggestion would be to have some clear way of showing that an item is part of a soundtrack work.

The simple solution to this is that when event type is Soundtrack, Part of changes to read Part of Soundtrack [work entity title]