1. Interference, beats, production, effects.
2. Vibration of strings, three laws.
3. Three classes of musical instruments.
4. Fundamental and overtones, nodes, segments, how produced? Results.
Exercises
1. What different means are employed to produce variation of the pitch of piano strings? For violin strings?
2. How many beats per second will be produced by two tuning forks having 512 and 509 vibrations per second respectively?
3. A wire 180 cm. long produces middle C. Show by a diagram, using numbers, where a bridge would have to be placed to cause the string to emit each tone of the major scale.
4. How can a violinist play a tune on a single string?
5. What are the frequencies of the first 5 overtones of a string whose fundamental gives 256 vibrations per second?