Warbl Finger Diagram Fonts

Warbl Font Folio — User's Guide

The Warbl is an electronic wind instrument designed and produced by Andrew Mowry in Oregon, USA. This Warbl Font Folio is a collection of free fonts with fingering diagrams for the Warbl electronic wind instrument.

The Fingering Diagram for Native American flutes is an example of these fonts used in a PDF document.

These fonts are specifically intended for authors who are writing documents related to the Warbl, such as engraving sheet music and authoring educational material. These fonts are particularly useful for people who use Microsoft Word to publish PDF documents (such as the User’s Guide).

In addition to being useful for normal text, these fonts have finger diagrams for all possible combinations of open and closed finger holes on the Warbl instrument, as well as a broad range of additional characters for typesetting music. Each font has both vertical and horizontal finger diagrams.

The Warbl fonts are and always will be free. The fonts are available to anyone at no charge and licensed under the SIL Open Font License Version 1.1. Warbl fonts may be used, studied, copied, merged, modified, and redistributed. You may download and embed these fonts in digital documents, use them in commercial projects (including mobile apps), and bundle them (with or without modification) for re-distribution under the terms of the SIL Open Font License Version 1.1.

Getting Started

To explore this font package, you can review the User's Guide as well as the Warbl Character Map document.

You can then download the latest release package in the Download Section below and dive in ...

Reporting Issues

If you have issues, suggestions, or ideas about the Warbl Font Folio, head over to the GitHub repository for reporting and discussing issues at https://github.com/ClintGoss/Warbl.

Download

Each release package is provided as a single ZIP file:

«Download the Current Version of the Warbl Font Folio — Version 1.200»

All Versions

Warbl Font Folio v1.200 — Feb 13, 2026

Warbl Font Folio v1.120 — Jan 23, 2026

Warbl Font Folio v1.110 — Jan 9, 2026

Warbl Font Folio v1.100 — Jan 7, 2026

Revision History

Version 1.200 updates — Feb 13, 2026

Major upgrade to add additional “closure” symbols for finger holes in addition to “open” and “closed”: half-hole, two trill styles, “X”, don’t care open, don’t care closed, and a “+” symbol near the head of the finger diagram to indicate an overblow. This is implemented using zero-width OTF Mark characters that add the new symbols to a preceding OTF Base character that (typically) provides the flute outline.

In addition to .ttf files, .woff and .woff2 format files are now provided for use on Web pages.

Version 1.120 updates — Jan 23, 2026

Repair the advance width of 7 finger diagrams. The advance widths of those diagrams were zero in some applications (e.g. Corel X8) that assume that a glyph with OpenType class [Mark] has a zero advance width.

Version 1.110 updates — Jan 9, 2026

Raise the Figure Dash U+2012 in all 16 fonts. It was noticeably too low.

Version 1.100 updates — Jan 7, 2026

Initial release.