### Semitone Interval Calculator

#### Intervals between frequencies

Jun 17 2018

An interval is the difference between two musical notes: the distance between two frequencies, often expressed in semitones (or cents). The below tool calculates the exact number of semitones between any two given frequencies, or, given a frequency and an interval, will calculate the note required to achieve that interval. Some facts: A semitone is equal to 100 cents. The twelve-tone equal temperament scale divides an octave into 12 semitones (of 100 cents each). A theoretical model of an equidistant heptatonic scale, where all the intervals of the seven-note scale were perfectly equal, would result in an interval of 1.714 semitones each (171.4 cents).

### Fula Flute Repair:

#### Fixing a loose embouchure

Dec 15 2016

Fula flutes are fragile instruments, and are susceptible both to impact (dropping, being sat on etc) as well as to changes in temperature and humidity. In particular, cold weather can cause troubles with your Fula flute. While wooden flutes are more fragile than the rigid “pipe” flutes that we make here at the Kassa Flute Co, the embouchure (mouthpiece or headpiece) of any Fula flute is made out of beeswax and can become brittle in cold weather. This can cause it to become loose. In extreme hot weather, the beeswax can melt and cause it to become mishapen. In either one of these cases, the problem is not severe, and can be fixed relatively easy. In this short article, we’ll show you how to fix a headpiece that has become loose.

### Flute Calculations Tool

#### for a Three-hole Fulani flute

Jun 19 2015

The most common question I get about making flutes is, “How do you know where to drill the finger holes?” Here is the “electronic worksheet” along with tools and charts I’ve developed over the course of my flute-making journey, to aid in the calculation of tonehole placement for a 3-hole Fulani Flute made from uniform diameter tube.