Steel Drums
Construction
The note's size corresponds to the pitch—the larger the oval, the lower the tone.[1]
The size of the instrument varies from one pan to another. It may have almost all of the "skirt" (the cylindrical part of the oil drum) cut off and around 30 soprano-range notes. It may use the entire drum with only three bass notes per pan, in which case one person may play six such pans. The length of the skirt generally corresponds to the tessitura (high or low range) of the drum. The pans are usually either painted or chrome plated. Other processes such as nickel plating, powdercoating, or hardening can also be applied as a finish.
Despite being a relatively new member of the percussion family, steelpan tuning techniques have advanced rapidly. Strobe tuners are ideally suited for the task. The need to see the first few overtones further makes a strobe tuner a necessity for steelpan tuning. Steelpan makers have used strobe tuners since it was discovered that, by adjusting the overtones (first (fundamental), second, and third partial), the pan's sound seemed to sparkle in a way that it did not previously.
There are several ways in which a steelpan may become out of tune (most commonly this is caused by playing the steelpan with excessive force and incorrect handling) and it is quite common that steelbands arrange to have their instruments tuned once or twice a year. A tuner must have great skill in their work to manage to make the notes sound both good and at the correct pitch. Much of the tuning work is performed using hammers.
In 2019 Kyle Dunleavy created fully chromatic Steelpans with sharps and flats, and would go down to the C below middle C. 21