Sep 252016

Of potential interest to new visitors to this site, as well as curious listeners questing into the deep sound realms of microtonal and xenharmonic music, is that maintenance has been completed on the Xen-Arts Music page that showcases five collaborative xenharmonic records created by various xen-artists and labels over the past many years.

Explore, stream, download and dream…

Xenharmonic Music


 Posted by at 3:11 pm
Sep 242016

Xfer Records • Serum | Microtuning Features | The Missing Facts

serum_x64Xfer Records • Serum

Xfer Records is currently among the developers of microtonal software synthesizers who offer very little easily accessible information about their microtuning implementation, and when I was recently doing some pre-purchase research about this instrument, it was very difficult to find anything conclusive on the Xfer web; only on some random audio forums and blogs was I able to discern the format it used, and I had to actually purchase the instrument to find out the deeper details, which I will share with visitors here.

Xfer Records • Serum | Microtuning Support

  • Serum features full-keyboard microtuning and works with the popular TUN format, which enables arbitrary retuning of each MIDI Note to any desired pitch, thereby enabling musicians and composers to use any historical or contemporary alternative intonation systems required of the music at hand.
  • Serum also enables users to load TUN microtunings from any drive locations on their computer.
  • Serum can store TUN microtunings at the individual patch/preset level, and also includes a Lock feature that enables users to load a fixed global microtuning while switching between presets.

As we can see, Xfer Records’ Serum developer, Steve Duda, got it right and included microtuning features that are critical for serious microtonal and xenharmonic music creation:

  1. Full-keyboard microtuning.
  2. Enables loading microtuning files from any directory on the user’s computer.
  3. Stores microtunings at the preset patch level.
  4. Includes a global microtuning lock feature for using a constant microtuning while working with the instrument.

Hopefully this information will help potential buyers of Xfer Records Serum to recognize that the instrument has a good TUN microtuning implementation without having to dig round the web for the scattered details.

It probably goes without saying that any developers whose software instruments feature full-keyboard microtuning should seriously consider publishing the information directly on their product features pages, which really helps alternative intonation enthusiasts to instantly make informed decisions when considering a purchase.

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 Posted by at 11:15 am
Sep 182016

XenFont2 | The Stereo Microtonal SF2 VSTi

An update to the popular XenFont VSTi has been completed, which includes two stereo SF2 oscillators as well as the modulation system inherited from our IVOR2 VSTi. This instrument also features an amplifier stage at the end of the stereo signal path, with three amp models for adding lots of nice character to the sound.

While this stereo microtonal SF2 instrument is fully functional and I’ve already been using it in my compositions, there are two remaining components that need to be completed before a public release would be possible: the patch-bank and the manual.

Since creating patch-bank and documentation content for virtual instruments are tasks that can require many countless hours of time and focus that might otherwise be spent on actually composing microtonal and xenharmonic music, I thought I would post a poll to verify the level of interest before moving forward on these final tasks.

Register your level of enthusiasm by voting below. This poll will run through the end of October to get a count of visitors, musicians and composers who would like to see this tool completed and publicly released.

If so compelled, also feel free to post in the comments to let the Xen-Arts development team know about your interest level in this new VSTi. Have you used our other SF2 SoundFont VSTi: XenFont and One-SF2? It would be great to hear from you.

Vote yes to express your interest in an update for the XenFont2 stereo SF2 SoundFont VSTi.
  • - ( 21 votes )
 Posted by at 1:38 pm
Sep 102016

Of potential interest and utility to developers, musicians, composers, researchers and enthusiasts alike, is that I’m providing the new Xen-Arts VSTi factory microtuning library in a selection of popular formats:

SCL & KBM, MTS, TUN, KSP, Partials Files


Xen-Arts VSTi Microtuning Library


Categories of microtunings included:

Equal Temperaments


ED2: Equal divisions of harmonic 2

ED3: Equal divisions of harmonic 3

ED4: Equal divisions of harmonic 4

Just Intonation

HD2: Harmonic divisions of 2

HD3: Harmonic divisions of 3

HD4: Harmonic divisions of 4

SD2: Subharmonic divisions of 2

SD3: Subharmonic divisions of 3

SD4: Subharmonic divisions of 4


Wendy Carlos – Alpha (78.0 Cents)

Wendy Carlos – Beta (63.8 Cents)

Wendy Carlos – Gamma (35.1 Cents)

Also included in this archive is thorough documentation in a text-file, which contains information about all of the microtunings and partials files content in a single, concise and easy to read format.

This is the library of 148 basic microtunings that are featured in the new IVOR2 VSTi, and will be included in future Xen-Arts instruments as well. As stated in the documentation for the instruments on offer here, this archive of microtunings does not endeavor the be an all encompassing collection, but is a basic set that can be used by beginners who may be curious about exploring alternative intonation systems in their music, and as an alternative to starting with the overwhelming 4,579 microtunings currently available in the Scala SCL archive. Designed and offered here as a learning device for newcomers to the field of microtonal and xenharmonic tuning as a way to get one’s feet wet before diving into the deep waters of intonation theory and practice.

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 Posted by at 3:11 pm