1. If I pluck a string on the guitar generating a fundamental note f1 and many of its harmonics, and then lightly touch my finger to a point in the middle of the string, the harmonics of the note I hear after touching are a)2f1, 3f1, 4f1, 5 f1, etc. b) f1, 2f1,3f1,4f1, 5 f1, etc. c)2f1, 4f1, 6f1, 8f1, 10 f1, etc. d)2f1, 3f1, 4f1, 5f1,6f1, etc. 5) none of the above

2. Violin Demo

3. L 13 Vibrating Rods, Membranes, and Percussion Instruments

21. Church Bells

27. Andrea Letzing Iffledorf, DE