#22

For this track, I used the prompt, “An instrument made out of rain and dirt.”

Field recordings by me:

Rain
Footsteps walking on a dirt track

Field recording by andersmmg (freesound.org/people/andersmmg/)::slight_smile:

Shovel in dirt

4 Likes
#23

NON-SUBMISSION
Hey All, A little sampling fest of the junto. Thanks to paul.reiners, Vonna Wolf and PopGoblin for making their tracks available. It was a cool happy accident that Paul’s track sounds like a crow. I did not realize til I was done with the track.

Peace, Hugh

1 Like
#24

Hi, you asked about the hydrophone used in my track.
It was made by Jez riley french and can be found here

https://jezrileyfrench.co.uk/hydrophones.php

Since your into Euro it can also be used with the MTM Mikrophonie module via a jack adaptor.

2 Likes
#25

From the Instrument Bot, I was assigned to make, “an instrument made out of biological data and a fire truck”. For the biological data, I took the primary protein sequence of the TRPV1 receptor which responds to capsaicin as well as heat (why spicy food tastes “hot”). I thought it would go well with the fire truck. I took the amino acid sequence and used MatLab to convert each amino acid to an integer (1 through 20 for the 20 amino acids). I then converted the sequence of numbers into midi using Supercollider which I used to control a piano from OPW from Spitfire. So the piano that you are hearing is a direct representation of the Capsaicin receptor amino acid sequence. The fire truck track was derived from field recordings I licensed from SoundSnap. The sounds of the fire truck (and some of the piano phrasings)remind me of the great Keith Jarrett (with apologies, it is not me playing, it is the protein sequence ).

5 Likes
#26

4 Likes
#27

An instrument made from a tin can and a ceramic bowl, pretty simple and straight to the point composed with yellofier on ipad.

5 Likes
#28

I chose “an instrument made out of thimbles and gelatin”. I cooked up some unflavored gelatin (colored with hibiscus flowers) and cut it into strips to form a sort of sticky keyboard with 8 keys on an old porcelain plate. I wired the gelatin keys to 8 digital-out pins on a Teensy 3.2 microcontroller (similar to Arduino). The microcontroller injects 3 volt square waves into each of the gelatin keys, each at a different frequency, roughly corresponding to a blues scale in Just Intonation. Each of these notes becomes audible only when I touch the corresponding gelatin key with a thimble - the square wave is conducted through the thimble into my skin, and from there across to my other hand which is touching the gold rim on the plate, which in turn is wired to a crazily sensitive Radio Shack amplifier, which duly plays the notes that are passing through my fingers in a sometimes painful way. The thimbles are not strictly necessary, but they keep my fingers from getting sticky as the gelatin melts in the summer heat - I had to turn off my air conditioner to make this acoustic recording.

The tune itself is a quick improvisation - I had to get it finished before everything melted. It helped to choose a hexatonic blues scale (more or less).

Please take a look at the video!

8 Likes
#29

Incredible. Thank you so much for this.

#30

instrumentbot
instrumentbot1430×246 44.3 KB

My mixing bowls are glass, and ring nicely when struck with a metal spoon. The standard ratio between bowl sizes used for cooking would seem to define familiar intervals of octaves, fifths etc. (Un)fortunately, the tolerances used in manufacturing my bowl set don’t seem to have taken western tonality into account.

A refrigerator door structures the composition in the following way. The pressure balance in our basement freezer is a little off, so once you close the door, it is extremely difficult to open again for ~5 minutes. Here, that means that notes and phrases are repeated only sparsely. The bowls define three notes, and with a rest I maximize the distance between repeats by rotating the sequence of four like so: 123R.23R1.3R12.R123. Then the whole phrase is repeated along-side a pitched up/down copy.

I loved the process, but the final product was, for me, not much fun to listen to. So, I identified a pleasing segment spanning about 6 seconds and paulstretched it 20x for an eerie drone-ified ode to my kitchen.

3 Likes