I remember the original Asterisk hold music being called "Calm River" (from Freeplay), and now I know that Cisco's music (which is alot longer than I expected!)

I remember the original Asterisk hold music being called "Calm River" (from Freeplay), and now I know that Cisco's music (which is alot longer than I expected!) is called "Opus number 1". But, there's one piece I haven't been able to identify. An old Royal Mail (UK) video uses it, at 3:38 in https://youtu.be/aZJE4oJxrVM?t=3m38s; https://youtu.be/aZJE4oJxrVM?t=3m38s; do any PBX admins recognize it?