A simple patch designed to help musicians tune instruments to specific frequencies. Multiply by frequency ratios & input and track frequencies using a microphone. All frequencies within a four-staff range are approximated using either standard glyphs, fractions, or cents with up to eighth-tone specificity.

Acknowledgements: Miller Puckette, Cort Lippe, Ted Apel [sigmund~], Andrea Agostini, Daniele Ghisi [bach.roll].