Author Archives: Tad

Sample piano roll output

This graphic presents a demonstration of piano rolls for separate instruments, which our J-DISC tools should be able to identify in future development stages. (Please click on the image to enlarge in a new window.)

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Research use cases for J-DISC MIR tools

MIR tools – current capability in the field or of J-DISC MIR 1. A highly regarded recording engineer has stated that he did not actually do many jazz recordings credited to him by a canonical jazz label. But he did … Continue reading

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Research Use Cases for the Current Version of J-DISC

I have listed below some examples of research questions that the current live, text-only version of J-DISC can help answer. Yes, current discographic sources in print or online can help yield answers to these questions. The same answers could be … Continue reading

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Two articles on jazz rhythm

I came across two articles by Matthew Butterfield, a professor of music theory at Franklin & Marshall College, that should be interesting for us in surveying analyses of jazz, and in resorting to observations or measurements using waveforms as evidence. … Continue reading

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Extracting tempo from actual drum performance patterns

DAn commented on my last post agreeing that it was circular to ask whether a drummer is “ahead” or “behind” the beat, when it is precisely the drummer we may be relying on to determine the beat.  That led me … Continue reading

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How to Listen to “Talking Drums”: Terms for Analyzing Jazz Percussion Practices

          After working on beat tracking for whole performances, our conversation turned to how to think about the chief rhythmic instrument in a conventional jazz group. The drummer states the tempo for the group. He also … Continue reading

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