Free Software

NOTE: You may need to empty your browser cache to see the current software update information in the table below. Documentation is included.

If you are having problems with the font, please visit the FAQ page.

If you find a bug or you would like to request a feature, please visit the corresponding software reports page:

User Manuals and Additional Files

Tonal Plexus

Tuning Box

Music Files and Videos

Music files have been moved here. Videos have been moved here.

MegaStaff Manuscript Paper


Here is free MegaStaff manuscript paper in various sizes and layouts, in pdf format. Please note the following:

  • The staves will look wrong when viewed on the screen.
  • Adobe Acrobat Reader does not print the staves correctly:
    • Mac users should use Apple's Preview application to get correct results.
    • PC users should use something like pdf995.

Printing Instructions:

  1. Open the file in Preview (mac) or other non-Acrobat application (PC).
  2. Go to Print Setup
  3. Choose the correct paper size (make sure it agrees with the file name)
  4. Choose Portrait orientation (this may not agree with the file name)
  5. Choose 100% scale
  6. Print

Printing the files at the incorrect orientation or scaling will result in errors. Some scalings work OK while others will print lines spaced unequally or with incorrect thicknesses.

Download all pdf files as a zip archive:

Download an individual sheet as a pdf (NOTE: staves will look wrong when viewed on-screen, and will not print properly from Adobe Acrobat Reader, see above for printing instructions):

No. of StavesLandscape OrientationPortrait Orientation
6- A3 US Tabloid
5- A3 US Tabloid
4 A3 US Tabloid A3 A4 US Tabloid US Letter
3 A3 A4 US Tabloid US Letter A4 US Letter
2 A4 US Letter A4 US Letter
2 Grands A3 US Tabloid A4 US Letter
1 Grand + 1 Solo A3 A4 US Tabloid US Letter A4 US Letter
1 Grand A4 US Letter-

Free Books on Tuning

Several significant works on tuning are now in the public domain. Each link below opens a new window with a page allowing you to download the complete book for free.
NOTE: The ideas and opinions expressed in each of these works belong solely to their authors, and are not necessarily endorsed by Hπ Instruments.

An Elementary Treatise on Musical Intervals and Temperament (1876) by R.H.M. Bosanquet
Essay on Intervals, Harmonics, and the Temperament of the Musical Scale (1835) by Wesley S.B. Woolhouse
Theory and Practice of Just Intonation (1850) by T. Perronet Thompson
On The Sensations Of Tone as a Physiological Basis for the Theory of Music (1875) by Hermann L.F. Helmholtz (English translation of the third German Edition)
Multiple Division of the Octave and the Tonal Resources of 19-Tone Temperament (1961) by Mayer Joel Mandelbaum
Divisions of the Tetrachord (1991) by John Chalmers
21st Century Orchestral Instruments (1997) by Patrick Ozzard-Low