# timing of a bar where it's 3/4 for a bar and 4/4 for the next?

I'm composing a song, and I made it so it goes 3/4 for 1 bar then 4/4 to kinda create a jerky-weird feeling in the song. But I have no idea what timing that would even be named as? Any help is much appreciated :)

Just as you said it, 1 bar of 3/4 followed by a bar of 4/4 - that's how you'd write it out.

• Ah I see, so no special thing to do to indicate it? In my head I'dda thought it would be written as 7/8 maybe? – treyBake Jun 26 '17 at 15:58
• It would be one bar of 7/8 if it's based on eighth notes – dazzathedrummer Jun 26 '17 at 16:00
• ah I see ok :) thank you for the clarification, do you have any resources I could potentiality read to get to better grips with.. unconventional timings? :) – treyBake Jun 26 '17 at 16:02
• It's your choice whether you write a bar of 3/4 followed by a bar of 4/4, or a single bar of 7/4. But there is a potential issue that the reader might interpret 7/4 as "4/4 + 3/4" not "3/4 + 4/4". If you want to be precise, you can write 3+4/4 or 4+3/4. – user19146 Jun 26 '17 at 16:02
• @alephzero I like it! :) 3+4/4 makes more sense to me as 3/4 comes first in the sequence but cool thank you both! :) – treyBake Jun 26 '17 at 16:13

As alephzero comments, it could be written out in 7/4, but a couple of criteria crop up. What will the next few bars be? If the 1st beat of the 3/4 bar is as emphasised as the 1st beat of the 4/4 bar, then it needs to be as you wrote - 7/4 is usually split, and the second 'half' won't be quite as emphasised as starting a new bar, in whatever time sig.

The label would probably be 'irregular time sig.'.

Another way to do it is to put expression marks over certain notes, but keep a regular time sig. I seem to remember something like that in Stravinki's Rite of Spring.

To further compound (confound?) the issue, it needs to be clarified that the crotchet b.p.m. is the same for all the bars. It's also possible to have a situation where each bar is the same length of time instead, although the first option is the usual one.

I would just do it like this:

One measure 3+4/4 time is the same as a measure of 3/4 time followed by a measure of 4/4 time. You could also write it in 7/4 time, but you run the risk of failing to communicate whether the fourth or fifth note in the measure should be emphasized (like a downbeat).

The formal term for this is mixed meter. If the piece strictly goes back and forth between only two meters, it could be clearly described as alternating mixed meter.

Another great (and very famous!) example of alternating mixed meter is the song America from West Side Story, which alternates every measure between 6/8 and 3/4 time.