*Each Thursday at [the Disquiet Junto group on Soundcloud.com](http://soundcloud.com/groups/disquiet-junto/tracks) a new compositional challenge is set before the group’s members, who then have just over four days to upload a track in response to the assignment. Membership in the Junto is open: [just join and participate](http://soundcloud.com/groups/disquiet-junto/tracks).*
This assignment was made in the mid-afternoon, California time, on Thursday, February 28, with 11:59pm on the following Monday, March 11, 2013, as the deadline.
These are the instructions that went out to the group’s email list (at [tinyletter.com/disquiet-junto](http://tinyletter.com/disquiet-junto)):
>Disquiet Junto Project 0062: Life of Sine
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>This week’s project involves making music from the basic building block of sound: the sine wave.
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>You will compose and record a piece of music using just three different sine waves, and nothing else — well, nothing else in terms of source material, but the waves can, after the piece has gotten underway, be transformed by any means you choose.
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>These are the steps:
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>Step 1: Devise which three sine waves you will employ. They should be different from each other in some evident way.
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>Step 2: The track should open with just one of the sine waves.
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>Step 3: Add the second sine wave at 5 seconds.
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>Step 4: Add the third sine wave at 10 seconds.
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>Step 4: Only at 15 seconds should you begin to in any way manipulate any of the source waves.
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>Deadline: Monday, March 11, 2013, at 11:59pm wherever you are.
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>Length: Your finished work should be between 1 and 4 minutes in length.
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>Information: Please when posting your track on SoundCloud, include a description of your process in planning, composing, and recording it. This description is an essential element of the communicative process inherent in the Disquiet Junto.
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>Title/Tag: When adding your track to the Disquiet Junto group on Soundcloud.com, please include the term “disquiet0062-lifeofsine”in the title of your track, and as a tag for your track.
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>Download: Consider setting your track in a manner that allows for attributed, commerce-free remixing (i.e., a Creative Commons license permitting non-commercial sharing with attribution).
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>Linking: When posting the track, be sure to include this information:
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>More on this 62nd Disquiet Junto project at:
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>https://disquiet.com/2013/03/07/disquiet0062-lifeofsine
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>More details on the Disquiet Junto at:
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>http://soundcloud.com/groups/disquiet-junto/
*Image via [wikimedia.org](http://commons.wikimedia.org/wiki/File:Interference_of_sine_waves.JPG).*