R20s - Music FQ - 01-02 (EXPLANATIONS)

A pure sine wave occurs at

• 550 Hz

• 110 Hz

• 440 Hz

• 330 Hz

• 220 Hz

Answer explanation

A pure sine wave occurs at 440 Hz and sounds like an “A” pitch above middle C on the piano.

Musicians in the United States tune to

• A

• E

• D

• B

• C

Answer explanation

Musicians in the United States tune to the “A” pitch above middle C. It is known as “A440.”

Who co-developed an instrument classification system based on the way they produce sound

• Leon Theremin

• Arnold Schoenberg

• Curt Sachs

• Anton Webern

• Alban Berg

Answer explanation

Curt Sachs and Erich von Hornbostel developed an instrument classification system based on the way they produce sound

Which instrument is a brass Aerophone

• timpani

• bassoon

• baritone

• saxophone

• bass drum

Answer explanation

According to the Sachs-Hornbostel classification system, the baritone is an aerophone because it produces sound by blowing air into the instrument, and it is in the brass family.

To which family does the flute belong

• woodwind

• percussion

• brass

• string

• keyboard

Answer explanation

Instruments were originally classified into families. The woodwind family includes flutes, clarinets, and oboes

which instrument is NOT considered a chordophone

• cello

• bass drum

• guitar

• viola

• lute

Answer explanation

The bass drum is not a chordophone because it does not produce sound through vibrating strings. It is a membranophone because it produces sound when its membrane is struck.

composing a piece in the style of musique concrete involves

• writing lyrics for a melody

• setting a tone row

• developing a fugue subject

• improvising on a jazz theme

• generating electronic sounds

Answer explanation

Musique concrète is a musical style developed post-World War II that involved the manipulation of electronic sounds.

an interval refers to the

• harmony in a composition

• speed of a melody

• distance between two pitches

• duration of a pitch

• volume of a sound

Answer explanation

In music theory, an interval is the distance between two pitches. The smallest interval is a half step.

which property of refers to the highness or lowness of a sound

• tessitura

• form

• timbre

• harmony

• pitch

Answer explanation

Pitch refers to the highness or lowness of a sound. It is abbreviated as a series of letters in Western music theory.

the white keys on the piano are known as

• harmonic

• alto

• chromatic

• natural

• soprano

Answer explanation

The white keys on a piano are known as the natural keys. They span seven alphabetical letters from A to G.