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Creating Music with Scribbler Robots: A Guide to Notes and Frequencies

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Discover how to program music with Scribbler robots using notes and frequencies! This guide explores the physics of sound and how each musical note correlates to a specific frequency. Learn to control notes using functions that convert notes to frequencies, accommodating a full range of eight octaves. We provide examples of how to create songs in Python/Scribbler by specifying notes and their durations. Uncover the challenges and joys of programming music while enabling your robot to play beautiful melodies!

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Creating Music with Scribbler Robots: A Guide to Notes and Frequencies

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  1. Scribbler Music Web Design

  2. Notes • Your robot can play a note by “beeping” • Every note in music has a “frequency” • Physics of Frequencies: (http://www.phy.mtu.edu/~suits/notefreqs.html) • Notes can be controlled by beeping the correct frequency. • beep(1, 440) -- Beep note A4 (That’s an “A” in the 4th octave)

  3. Scribbler Music • Programming music by frequency is difficult! • It’s a lot of numbers! • Scribbler has set of functions that help go from notes to frequencies. • Scribbler has a range of 8 octaves (same as a piano) • Scribbler has all the notes. They are denoted: C C#/Db D D#/Eb E F F#/Gb G G#/Ab A A#/Bb B

  4. Scribbler music e .25 d .25 c .25 d .25 e .25 e .25 e .25 d .25 d .25 d .25 e .25 g .25 g .25 e .25 d .25 c .25 d .25 e .25 e .25 e .25 e .25 d .25 d .25 e .25 d .25 c .25 • That is also the default octave which is the 5th octave. • You can create a song in python/scribbler by simply giving the note and length of the note:

  5. Harmony F G .25 F G .25 F G .25 F G .25 F G .25 F G .25 E G .25 E G .25 E G .25 E G .25 E G .25 E G .25 D B .25 D B .25 D B .25 D B .25 D B .25 D B .25 C C6 .5 C C6 .25 C C6 .25 D B .25 E A .25 F G .25 F G .25 F G .25 F G .25 F G .25 F G .25 E G .25 E G .25 E G .25 E G .25 E G .25 E G .25 D B .25 D B .25 D B .25 D B .25 E A .35 D B .25 C C6 .25 F G .25 C C6 .25 C1 .25 C1 .25 C6 E6 .25 B D6 .50 A C6 .25 G B .50 F A .25 E G .25 E G .25 E G .25 E G .25 F A .25 E G .25 D F .25 D F .25 D F .25 D F .25 E G .25 D F .25 C E .25 D F .25 E G .25 REST .50 C6 E6 .25 B D6 .50 A C6 .25 G B .50 F A .25 E G .25 E G .25 E G .25 E G .25 F A .25 E G .25 D F .25 D F .25 D F .25 D F .25 E G .25 D F .25 C E .25 F G .25 F G .25 F G .25 F G .25 F G .25 F G .25 E G .25 E G .25 E G .25 E G .25 E G .25 E G .25 D B .25 D B .25 D B .25 D B .25 D B .25 D B .25 C C6 .5 C C6 .5 C C6 .5 D B .25 E A .25 F G .25 F G .25 F G .25 F G .25 F G .25 F G .25 E G .25 E G .25 E G .25 E G .25 E G .25 E G .25 D B .25 D B .25 D B .25 D B .25 E A .35 D B .25 C C6 .25 F G .25 C C6 .50 Scribbler Robots can play 2 notes simultaneously. Simply list the 2 notes on the line.

  6. Songs… • Once you have the notes you need to add the timing. A whole note is 1 and half note is .5, etc. • Normally a whole note is about .5 secs. You can change the tempo but sending a parameter in playSong() function. • Now take the notes and the timing and you create a song! • Listen…

  7. Music…

  8. Chariots of Fire Db 0.25 Db Gb 0.25 Ab 0.25 Bb 0.25 DbAb 0.5 Db F 0.5 Db 0.25 Db Gb 0.25 Ab 0.25 Bb 0.25 DbAb 1 Db 0.25 Db Gb 0.25 Ab 0.25 Bb 0.25 DbAb 0.5 Db F 0.5 F 0.25 Db Gb 0.25 F 0.25 Db 0.25 Gb4 Db 1 Db 0.25 Db Gb 0.25 Ab 0.25 Bb 0.25 DbAb 0.5 Db F 0.5 Db 0.25 Db Gb 0.25 Ab 0.25 Bb 0.25 DbAb 0.5 Db F 0.5 Db 0.25 Db Gb 0.25 Ab 0.25 Bb 0.25 DbAb 0.5 Db F 0.5 F 0.25 Db Gb 0.25 F 0.25 Db 0.25 Gb4 Db 1 Db6 .25 C6 .25 Bb .25 Ab .25 F C6 .375 Ab .125 Db Bb .375 Gb .125 DbAb .375 Db Db6 .125 Db C6 .25 Db Bb .25 DbAb .25 F C6 1 C Gb 1 F 2 Db6 .25 C6 .25 Bb .25 Ab .25 F C6 .375 F Ab .125 Db Bb .375 Db Gb .125 DbAb .375 Db F .125 Db Gb .25 Db F .25 Db .25 Db 1

  9. Playing a song from myro import * robot=Scribbler() s=readSong("chariots of fire.txt") robot.playSong(s)

  10. Your Project • Find a song. You need the music to the song! • Code a minute of the song correctly in “scribbler” music • Everyone needs to do their own song! There are enough robots for everyone.

  11. Music

  12. Notes of the scale… • If you don’t understand K’s andH’s, talk to me and I’ll try and explain!

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