The Glasgow Improvisers Orchestra is ten years old this year. The first of a series of concerts to mark the anniversary takes place in the Recital Room at the City Halls tomorrow, Wednesday 21st.

Actually, if you believe the big screens which are scattered around the City Halls advertising forthcoming events, it’s a concert by the “Glasgow Improviser’s Orchestra”: presumably all but one of them will be reading from scores or will have memorised their parts in advance.

Nitpicking aside, the concert is going to consist of a series of pieces by groups made up of different members of the orchestra: GIO’s website talks about it as “an evening of improvised chamber music”.

The evening also sees the launch of GIO’s latest album, a performance of George Burt’s “conduction” Improcherto.

The concert starts at 8pm and tickets are £6.