FOF Choir – Matrix

Ostinato vowel patterns available in 120 possible permutations...

The story

Inspired by Stockhausen’s Stimmung (for 6 vocalist), I generated ostinato vowel patterns, using Csound (see FOF Choir instrument) of 4 out of the 5 vowels a, e, i, o, u, (triplets 3) in 8 different rhythms ranging from 4 whole notes to 4 sixteenth notes. I used the Matrix (see also my Sansula Matrix instrument), to cluster these different rhythms in 3 notes.
These rhythms adapt to the tempo of your DAW. Every note has a different ostinato vowel pattern, one of the 120 possible permutations.
You can individually assign the different rhythms to each cluster of 3 notes, or use the randomize button (or red keyswitch) to get a random assignment. With the column select buttons (or yellow keyswitches) you can also assign the complete range to a rhythm.
The instrument is available in Kontakt 6 and in DecentSampler format (split into 9 instruments: random rhythm pattern, 8 rhythm patterns (4 whole notes – 4 sixteenth notes) as 60bpm loops)
Developed in CSound 6.15, Kontakt 6, DecentSampler
Simple demo to get an impression:


Leave a review to let others know what you thought of the instrument!

  • Another choir library with Matrix!!

    And now boom! Another randomizable choir library! This is just amazing. In a few sec I got such an interesting textured voices. It is very fun to play with, very inspiring!

    Asuka Amane16 October 2021
  • Beautiful Formant Electronic Choir

    These sounds are so brilliant. You have your own robotic choir with so many different variants with your formants. there are seemingly endless combinations to choose from! And the matrix is extremely intuitive and easy to use! The only downside to this is that it is a pretty distinct sound so it really won't fit in every setting though I think using it for sound design opens up some wonderful opportunities especially with a slower pitched down granular plugin on it. So excited to experiment with this!

    sirfache16 October 2021
  • Very fun but does it have an actual use case?

    I am kind of split between "This is so much fun!" and "Where do I use this?". It seems that it's nicely made in most terms, but I really can't think of any real musical scenarios that this can be used in a serious way. It lacks the feeling, the control and the continuity that I am looking for in such an instrument.

    Alex Raptakis15 October 2021
  • Excellent Throwback Voices!

    Slightly computerized voices, reminiscent of mid-80's vocal synthesis. This sample pack is not only fun and inspiring, but really useful. The sounds seem to sit well in mixes and work great in a variety of styles. This is such a unique and cool library! Highly recommended!

    Sam Ecoff15 October 2021
  • Great for Kontakt...

    This choir instrument is really fun to use and the rhythm-based samples add a lot of fun motion to your tracks. For those using Kontakt it's a must-have, but it's understandably a little bit more limited in the Decent Samples version. Love the retro synth sounds that this instrument can produce. Great job!

    christopher13 October 2021
  • Instant fun

    Got inspirational sounds in seconds!!!!! Looking forward to playing with it even more. Loved the organy overtones at the top end. Instant rhythmic patterns. Brilliant. Even managed to get some Mongolian Throat Singing out of it. I don't have enough time in my life for this kind of fun!

    Phil Wallace13 October 2021
  • Nice sounds

    Very cool idea and inspirational sound. Always love rhythmic things!

    Heikki Ketola13 October 2021
  • Fun inspiring retro choir

    I really like the FOF Choir instrument, but this takes it to a new level. This instrument is incredibly fun to play and experiment with, and when you get something cool out of it you can almost hear the rest of the arrangement building up around it. The matrix idea would be good for all kinds of sounds, but I think it's particularly well suited for the FOF Choir.

    ChesterGwazda13 October 2021