# Maintaining pulse, changing measure length

TLDR; So I've got a piece that's predominantly in a nice, slow, 4/4 common time at 76 bpm. Halfway through however, in order for the score to not look like a horrific mess, I needed to keep the same pulse (76 bpm), but instead count it in two, effectively halving the bar length and giving it a cut-common feel - the tempo/pulse stays the same, but the "conductor" is conducting in 2, not 4.

I knew I didn't want to just write a tempo change 2x the previous one. I've never had to deal with up until now, but the solution I came up with was:

• Change from 4/4 (C) to cut-common.
• Specify "double time" in the new section However, I wasn't 100% sure if "double time" actually "doubled" the tempo or it just cancelled out the cut-common effect.

Tell me if my solution works and if not, any help on how to do this in a sleek way would be much appreciated.

tyty

• Sounds as if it's actually not twice as fast - new crotchet = old crotchet in duration. It's only the feel that's changed. You may have halved the length of the bar, but b.p.m. remains. – Tim Jul 24 '20 at 6:01
• What's wrong with a tempo change 2x the previous one? "Doppio movimento" is a reasonably common tempo indication and means precisely that: double the previous tempo. – Dekkadeci Jul 24 '20 at 10:50
• Please provide an example of the change in time section so that we can make a more informed opinion – user70304 Jul 24 '20 at 13:38
• @Dekkadeci - nothing wrong - in some pieces, except here, crotchet = crotchet, so there's no doubling of tempo. – Tim Jul 25 '20 at 6:07

• I agree completely with this. Even if it would mean rewriting already written music from 2/2 to 2/4, it just makes sense, totally no confusion. – user70304 Jul 24 '20 at 5:50