Single From Relationship Type

Official Documentation: Advanced Relationships Overview \| Relationship Classes \| Relationship Families \| Relationship Types \| Relationship Attributes Style guidelines \| How to add URL relationships \| How to add other relationships \| Suggest a new relationship type Relationship Classes > Alternative Version Relationship Class > Single From Relationship Type

Description

This indicates that a single or EP release group includes at least one track taken from an album or soundtrack release group. This allows a release group to be linked to its associated singles, EPs, and remix release groups.

The Begin Date fields should be left empty.

The End Date fields should be left empty.

This indicates that the release group which is from the other release group is an EP rather than a single.

A single from another release group must contain at least one song, typically the single's title track, which is sourced from the album.
The version of any tracks on the single which are from the other album or soundtrack do not need to be the exact same version. ("single version", "radio edit", etc.)
Compilations and soundtracks cannot be from another release group, though they can have singles from them.
The linked source Release Group should be the one which contains only the appropriate album or soundtrack. Release Groups for releases containing two albums and/or EPs should not be used for such relationships.

Correct

Incorrect

Default relationship with no attributes in use:

Come as You Are is a single which was taken from Nevermind
Lithium is a single which was taken from Nevermind
Nevermind had associated single(s) Smells Like Teen Spirit, Come as You Are and Lithium

With the EP attribute: