More on the Music of the Strings

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Presentation transcript:

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

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!)

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

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

The stringed instrument

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

When do these things happen?

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

A few tools Electrical Signal Mechanical Sound Wave

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

What does a sound “look like”??

Sound & Noise

Tones from instruments

OCTAVE

An issue: tone STRING Fundamental mode

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

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