L14Vibrating Air Columns,

Organs, and Flutes

Flute

CT 3.4.2

What's the function of finger holes in a flute?

a) To create an edgetoneb) To shorten or lengthen the pipec) Emphasizes the affects of the reedd) Mostly aesthetice) More than one of these

Recorder

Pan Pipes

A flute playing its lowest note is shown in spectrum “A”. f1 refers to the fundamental of the flute. Which spectrum best matches a panpipe half as long as the flute?

CT12.1.4b

A

f1,flute

ampl

itude B

f1,flute

ampl

itude

C

f1.flute

ampl

itude

6f1

6f1

6f1

D

f1,flute

ampl

itude

6f1

E) None of these looks right.

A flute playing its lowest note is shown in spectrum “A”. f1 refers to the fundamental of the flute. Which spectrum best matches a panpipe (of equal length) playing its lowest note?

CT12.1.4b

A

f1,flute

ampl

itude B

f1,flute

ampl

itude

C

f1.flute

ampl

itude

6f1

6f1

6f1

D

f1,flute

ampl

itude

6f1

E) None of these looks right.

Organ

http://images.google.com/imgres?imgurl=http://upload.wikimedia.org/wikipedia/commons/4/42/Forkarla_kyrka_organ_pipes.jpg&imgrefurl=http://commons.wikimedia.org/wiki/File:Forkarla_kyrka_organ_pipes.jpg&usg=__Uxpi40vcmg9Fph2Ph7sn6JmY5p4=&h=1483&w=1962&sz=823&hl=en&start=1&um=1&tbnid=C_YTwoEDBUedcM:&tbnh=113&tbnw=150&prev=/images?q=organ+pipes&hl=en&sa=G&um=1

CT 3.4.3

If we halve the length of a tube in a wind instrument what will happen?

a) The period is halvedb) The frequency is doubledc) Raises the pitch one octaved) Both a and be) a, b, and c

CT 12.1.2

If you double the diameter of a long organ pipe, what happens to the fundamental you hear?

A) Goes down by an octaveB) Goes down, but way less than an octaveC) Goes up, by an octaveD) Goes up, but way less than an octaveE) Something else