This is a little Javascript program that calculates the frequencies of partials in a harmonic series, and returns the results in a tab-delimited list ready for pasting into Excel.

Frequencies are calculated as: , where f is the fundamental frequency, s is the Scaling Factor, x is the partial number, e is the exponent and a is a constant to be added to all frequencies.

**Fundamental frequency**:

**Octave**:

**Scaling factor** (1.0 = normal)

**Exponent** (1.0 = normal)

**Frequency addition** (Hz)

**Number of partials**

**Quantize microtones to nearest**:

**Output**(tab-delimited)

can be copied and pasted into Excel

**Music Notation**:

**Graph**:

NB: quarter-flats and quarter-sharps are encoded as double-flats and double-sharps, as Sibelius does not correctly import quartertones. Grrrr.