
- Who
- David Stanley, The Music Man Project Students
- What
- 1,521 people
- Where
- United Kingdom (London)
- When
The largest triangle ensemble consists of 1,521 people, and was achieved by students of The Music Man Project at an event organised by David Stanley (both UK) in London, United Kingdom, on 15 October 2017.
This event was organised for the 'Music is Magic' concert at the London Palladium.