MARC21-007: Specific material designation of sound recording
sound disc
Thin circular objects that vary in diameter (e.g., 7 in., 10 in., 12 in.), on which sound waves, recorded as modulations or pulses, are incised or indented. Compact audio discs are typically 4 3/4 in. in diameter.
d
cylinder
Cylindrical objects on which sound waves are incised or indented in a continuous circular groove.
e
Mass-produced cylinders are made of plastic. Early cylinders were made of tinfoil or wax.
sound cartridge
Containers holding a single sound tape, run as an endless loop.
g
sound-track film
A sound recording on film that is not intended to accompany visual images.
i
Also when it is not known if a sound recording on film is intended to accompany visual images.
roll
Roll of paper, for example, for player piano or player organ, on which the notes of a musical composition are represented by perforations in the paper and from which sound can be mechanically produced.
q
sound cassette
A container holding a narrow, usually 1/8 inch, sound tape on two reels, one to feed (and rewind) and the other to take up the sound tape.
s
sound-tape reel
An audiotape-transport system with separate supply (feed) and take-up reels. Usually designated an Open Reel or Reel-to-Reel.
t
unspecified
Special material designation for the sound recording is not specified.
u
wire recording
A round steel wire on which sound waves are magnetically recorded.
w
other
Specific material designation other than sound disc, cylinder, sound cartridge, sound-track film, roll, sound cassette, sound-tape reel, wire recording.
z
Published