New B-Keeper software gives drummers the freedom to set their own pace

Written by: Ani
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Washington, Jan 13 (ANI): Scientists have developed a new software that will give drummers the freedom to speed up or slow down the pace of any pre-programmed music, the material following their lead.

It means that drummers will no longer have to keep time with a click track and the set beat of pre-recorded tracks that are used during many live performances and studio sessions.

The software has been developed by Dr Andrew Robertson from Queen Mary, University of London's School of Electronic Engineering and Computer Science.

Called B-Keeper (short for Beat-Keeper), the software will give drummers the ability to add much more 'feel' and spontaneity to performances.

Currently, many bands in the studio and at gigs use click tracks consisting of metronome-like clicks fed to the drummer via earphones.

They are needed because bands commonly now integrate significant amounts of pre-programmed music (e.g. created by sequencers*) into their songs. Unless the drummer keeps a precise, predetermined rhythm, the pre-programmed material will not synchronise properly with the rest of the music.

But by providing a rhythmic straitjacket, a click track gives the drummer no freedom at all to vary the rhythm and means they cannot speed up or slow down, for example in response to the mood of a crowd at a gig or because they 'feel' the music differently from a previous performance.

With B-Keeper, the drummer can speed up or slow down by around 5% and still keep pre-programmed parts of the music in line with the beat.

The drums are linked to the software via microphones, with both the kick and snare drum miked up. The software automatically adjusts the tempo of any pre-programmed music. By using a sequencer that incorporates a pitch-tracking algorithm, the tempo of the pre-programmed music can be changed without affecting its pitch.

"Usually, the drummer follows the click track, but with B-Keeper the click track follows the drummer," says Dr Robertson, who wrote the software from scratch. "The software follows the beat of the kick and snare drum and uses that information to make sure everything stays synchronised by changing the replay speed of the pre-programmed parts."

Dr Robertson is a keen guitarist and B-Keeper has now been successfully trialled by his own 'space rock' band, Higamos Hogamos.

"We've used B-Keeper at gigs in the UK, Belgium and Luxembourg, and it makes a noticeable difference in terms of helping to create a better atmosphere and letting the band feed off and bond with the crowd", says Dr Robertson. "Our studio work is also benefiting from the flexibility B-Keeper gives us when we're recording our material." (ANI)

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