Blowing in to beat a record; CHALLENGE: 700 trombones to join city parade.
HUNDREDS of trombonists will be sliding into Centenary Square today in a bid to get into the Guinness Book of World Records.
The largest ever ensemble of trombones in one place was in Broekhuizen the Netherlands in 1997 when 289 musicians set the tune.
But organisers of the Birmingham event were today hoping to blow the existing record away by attracting more than 700 trombonists.
The big blow is scheduled for 5.30pm with the trombonists expected to play When The Saints Go Marching In, Handel's Sarabande and Holst's Mars, the Bringer of War (from The Planets).
The event is one of many taking place across Birmingham as part of the International Trombone Festival.
The record attempt will include 350 young musicians from Music Services across the Midlands alongside 350 of the top brass performing at the festival.
Birmingham Symphony Orchestra is making it's own contribution to the festival with a concert at Symphony Hall tomorrow, at 7.30pm.
The concert will feature some of the most impressive British brass pieces from the classical repertoire including Gordon Jacob's Trombone Concerto, originally commissioned for the CBSO 50 years ago.
The trombone festival runs until Sunday and will feature leading lights from the trombone world.
Steven Greenall, director of the International Trombone Federation, said: "Trombonists across the world are known for their camaraderie and sense of fun, so there's no better way to celebrate this festival than by bringing everyone together to beat the world record.
"We've already had a great response and hope to at least double the current record of 289 trombonists."
Tickets for Slides Rules cost from pounds 8 to pounds 38 and are available from Symphony Hall Box Office on 0121 780 3333 or online at www.cbso.co.uk.