1. More on the Music of the Strings
October 15, 2004
More on the Music of the Strings

2. Stuff Exam is NEXT Friday.
It covers material discussed through Monday.
A study guide will appear on the web site over the weekend.
The lectures on the web should serve as a good guide to studying as well.
Read material in the text that discusses class materials.
Review material for last exam, since we have been building on it.
You will NOT be punished for reading extra stuff in Johnston … it really is interesting and educational. Isn’t that what you are here for? (Sorry!)

3. Last Time Waves travel along the strings
Frets determine the frequency of the tone.
Tension also determines the frequency.

4. Other Stuff What is this? There is a hole in it … is it broken???
Why does his
Hand look funny?

5. The stringed instrument

6. Huh?
What happened to those nice wavy things we
Talked about???

7. When do these things happen?

8. A hint
There is an electronic thingy that can produce tones at any desired frequency.
Let’s listen to a pure tone.

9. A few tools
Electrical Signal Mechanical Sound Wave

10. On the way to the ear.
Dum dum di dum
Pressure v
time

11. What does a sound “look like”??

13. Sound & Noise

14. Tones from instruments

15. OCTAVE

16. An issue:
tone
STRING
Fundamental mode

17. Let’s look at the tone (sound)
E=330 Hz.
V=1100 ft/sec

18. 82.4 E - open 6th string
87.3 F
92.5 F#
98.0 G
103.8 G#
110.0 A - open 5th string
116.5 A#
123.5 B
130.8 C
138.6 C#
146.8 D - open 4th string
155.6 D#
164.8 E
174.6 F
185.0 F#
196.0 G - open 3rd string
207.6 G#
220.0 A
233.1 A#
246.9 B - open 2nd string
261.6 C - "middle C"
277.2 C#
293.6 D
311.1 D#
329.6 E - open 1st string
349.2 F
370.0 F#
392.0 G
415.3 G#
440.0 A - 5th fret on 1st string
466.1 A#
493.8 B
523.2 C
554.3 C#
587.3 D
622.2 D#
659.2 E - 12th fret on 1st string