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In this video, I'm summarizing the differences between Polyrhythms and Polymeters, using Bitwig's grid and an oscilloscope module for demonstration. Here are the key points:

  1. Polyrhythms: Created using a "triggers" module in the grid, subdividing a bar into equally spaced steps.
    For instance, subdividing a bar into four steps and then into three creates different rhythmic patterns within the same bar length.
    Demonstrated with note clips showing different subdivisions (like three and five steps) within a single bar, creating varying trigger points.
  2. Polymeters: Differ from polyrhythms in that the subdivision remains constant, but the length of each bar changes.
    Example: subdividing a bar into 16 steps, then changing the bar's length.
    Demonstrated using an "attenuate" module initially, but corrected to use a "phase reset" to maintain the original playback speed.
    The phase is reset at a specific point, altering the loop point within the bar but keeping the subdivision constant.
  3. Implementation in Bitwig: For polymeters, the technique involves comparing the phase signal to a value and using it to reset the phase at a particular point.
    This allows the pattern to loop at different positions within the bar.
    The "triggers" module is identified as a polyrhythm device, while a "reset module" is suggested for creating polymeters.
  4. watch the new video, with more and better options: https://www.patreon.com/posts/i-was-wrong-96539593 

Files

Polymeters impossible in the Grid?

Luca inquired on Instagram, "How can I alter the length of a trigger pattern without modifying the subdivisions or tempo?" Here's my solution to this issue in @bitwig , which includes an explanation of the difference between polyrhythms and polymeters. -- 💕 Support me on Patreon: https://bit.ly/3PgbxZz 💰 or donate via Paypal: https://bit.ly/3cae9t8 🎧 Buy my Music: https://polarity.bandcamp.com/ 💾 Download my Tools / Github / Resources: https://polarity-dnb.de/blog/polarity-music-tools-samples-and-bitwig-presets-update-2019.html 💻 Check out my gear on Kit: https://kit.co/polarity/polarity-music-kit -- DEALZ: 🛒 Buy Bitwig Studio & Support me https://bit.ly/3yQEyDU 🛒 Upgrade Bitwig Studio & Support me https://bit.ly/3OimEjc 🛒 VST/AU Plugin Deals https://bit.ly/3zcvo66 -- SOCIAL MEDIA Discord: https://discord.gg/eWwFBww Blog: https://polarity-dnb.de/blog/ Twitter: https://twitter.com/polarity Reddit: https://www.reddit.com/user/polarity-berlin/ Business Inquiries: robert@polarity-dnb.de Paypal Donations: donate@polarity-dnb.de

Comments

Alexandre Enkerli

Your English and explanation aren’t bad. It could help some people understand polymeters. (And, hopefully, get them to experiment with them.) What I’m not sure is: how about setting different devices with different device phases?

Alexandre Enkerli

Also… https://www.youtube.com/watch?v=htbRx2jgF-E

Alexandre Enkerli

In terms of that trick in Ableton’s pianoroll, the Bitwig equivalent could be to “Scale…” the line by the fraction (say, 3/7).