The simplest way to get in tune is by using a kazoo to sound the correct pitch. Kazoos don’t require batteries and make a very rich sound. It is important to use a steady breath making sure that the pitch you’d like does not waver. One drawback of using a kazoo to tune a fiddle is that water vapor will drip out of the end of the kazoo and it is important to hold the fiddle in a fashion that will divert the water away from the f holes. Bear in mind that it is water and not spit that flows from the kazoo. It is condensation caused by the warm breath meeting the cold metal of the kazoo. So maybe a kazoo is not the best choice for tuning a fiddle but it is ideal for tuning up the old banjo. The rich tones of the kazoo and banjo make a wonderful noise.