Aberdeen Jazz Festival Various dates and venues, visit www.aberdeenjazzfestival.com for further listings Aberdeen Jazz Festival always offers interesting new names alongside the established, high-end acts. Among the organisers' bold discoveries this year are Chicago acid jazzers Pete Carney and Orange Alert (Friday) and Israeli fusionistas Yuval Ron and the Residents of the Future (Saturday). Guitarist Martin Taylor and vibist Joe Locke add flair and flamboyance (Saturday), and tonight boasts two of British jazz's current raves, the ultra dynamic Neil Cowley Trio (Blue Lamp) and the brilliant drummer Seb Rochford's cuddly but dangerous Polar Bear at the Lemon Tree.

Blues: Steven Seagal S at 10, 5pm and 9pm (returns only), The Ferry, Anderston Quay, Glasgow, £26, 01698 360085; Sun 11, 7.30pm, Queen's Hall, Clerk Street, Edinburgh, £26, 0131 668 2019 On-screen, he's a raging torrent of energy in action-packed movies such as Today You Die, Under Siege and Shadow Man. Off-screen, he's a raging torrent of blues power who lives up to the PR machine's line of lifelong immersion in the blues with a voice that carries a genuine blues singer's authority and a guitar style that cuts like a scimitar. Forget any notions of a Hollywood star heading for a celebrity banana-skin slip, this is one contender who could give up the day job.