The Glasgow New Music Expedition (website here, Twitter here) will be performing several pieces of music at the Royal Conservatoire of Scotland's PLUG music festival this year (some more details here). After doing some searching, I haven't been able to find any information on how they intended to license or attribute these pieces of music, so I sent them a message asking what their plans are for this.
For now, just waiting for a response to see what, if any, further action needs to be taken.