Edinburgh’s Tinderbox Orchestra are an ensemble like few others, a sort of punk philharmonia where casual clothing, perpetual movement, general rocking out and collaborations with hip-hop collectives are the norm. Their latest project is a Fringe residency in the Old Royal High on Calton Hill, recently re-opened by Hidden Door festival and earmarked as the new site of St Mary’s Music School. Its oval Grand Hall was packed and buzzing with fans of all ages as the 25-piece group started to assemble in the central well to the siren call of one of their singers.

And then came the first hit, a wave of incredible energy and vibrant volume with the young players prowling the space, as the electric instruments delivered progressive rock momentum with urgent woodwind in pursuit. Celtic and klezmer influences were beautifully assimilated. It is rare to be this close to an orchestra, with the players standing on the seating or making forays into the stairwells in a thrilling deconstruction of orchestra convention. The string players formed a groovy pack, the brass section had, and delivered a blast, the rhythm section unleashed some Sturm und Drang. How no one tripped on the tangle of mic leads was a carefully calibrated wonder, and the joy in the room was palpable.

Pianodrome At The Old Royal High, until 21 August, 8pm.