Set tempo for "Play a" block

John Kauffman · 2017-10-18 00:08

Is there a way to assign a beats per minute to duration values in a set of "Play a" blocks?

Ken Gracey · 2017-10-23 16:48

Are you using the S3 or Activity Board block type?

John Kauffman · 2017-10-23 20:17

Scribbler S3

Whit · 2017-10-30 02:52

@John,

Could you use the play tone block and use the duration to achieve the same thing? For instance, at 120 BPM, each beat would be 500 ms (1/2 second)? This could make a very interesting lesson in math and music. The block could be used for rests (or with a wait block).

Play%20Tone.JPG

See this great resource at wiki - https://en.wikipedia.org/wiki/Tempo

Whit · 2017-10-30 02:58

If you prefer the configuration of the play note block look and configuration - You could change the play tone block to an inline configuration as shown below. Both blocks are shown for comparison.

sound%20blocks.JPG

John Kauffman · 2017-10-30 07:25

Sure, no problem to achieve goal with play tones block. I use it for a student extension to investigate both duration and the physics of frequency.

But for play block, having a duration doesn't have a meaning in music without a tempo (or as the DJ's say: beats per minute). I don't know if it would be easy to have a block that sets tempo. I think there might be one in Scratch.

Whit · 2017-10-30 21:00

I know that one was being experimented with at one time...

Here is something fun that could be Saved As to start a new bit of code or appended to code.

http://blockly.parallax.com/blockly/editor/blocklyc.jsp?project=15299#

John Kauffman · 2017-10-30 23:43

Thanks, Whit.
Sometimes brute force is a fine solution.

Whit · 2017-10-31 02:57

I know that one was being experimented with at one time...

BlocklyProp Code for S3 - BPM Set and Volume Set for S3 Play Tone Block - http://blockly.parallax.com/blockly/editor/blocklyc.jsp?project=15299

Set tempo for "Play a" block

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