Scan 33
The American History and Encyclopedia of Music, 1908
53 lines. Read by computer on 18 September 2026. No printed page number was found. See the scan on archive.org.
1accoupler
2connected with the corresponding keys of another that when the former are depressed the latter are also depressed, and thus both can be played by a single motion. The term is used in organ music, especially in the imperative, accouplez, meaning (You), draw the coupler.
4accrescendo (äk-krēs-shān'-dō) It. pres. part.
5Increasing in power. Same as crescendo. Abbr. accres.
7accrescere (äk-krēs-shā'-rē) It. v.
8To increase: to augment the sound. Synonym of crescere.
10accrescimento (äk-krēs-shē-měn'-tě) It. n.
11An increase or growth.
121. Applied to a fugue it means prolonging the fugue by increasing the time value of the notes.
132. It occurs also in the Italian phrase, "punto d'accessimento," abbreviated to "punto d'accr.," which means the dot placed after a note to increase its value; it is called in English the dot of prolongation. Abbr. accres.
15accresciuto (äk-krēs-shoo'-tō) It. past part.
16Increased, augmented: applied to intervals. An interval is said to be increased or augmented when by means of a sharp, flat, or natural, a half tone is added which makes it greater than a major interval.
18acht (äkht) Ger. adj.
19Eight.
21Achtachteltakt (äkht – äkh' – těl – täkt) Ger. n.
22Eight-eight time.
24Achtel (äkh'-těl) Ger. n.
25Achtelnote (äkhtl'-nō-tě) Ger. n.
26An eighth note or quaver.
28Achtelpause (äkhtl'-pow'-zä) Ger. n.
29Eighth or quaver rest.
31achtfüssig (äkht'-fūs-sīkh) Ger. adj.
32Eight-footed: in reference to an organ pipe, one which is eight feet long and can produce a tone two octaves below middle C. Of organ stops, those whose lowest tone is two octaves below middle C.
34achtstimmig (äkht'-shtīm-mīkh) Ger. adj.
35Designed for eight voices or instruments.
37acocotl Mex. n.
38A Mexican plant from whose stalk an aboriginal wind instrument of the same name was made. It consisted of a thin tube from eight to ten feet long, the performer playing upon it by inhaling the air through it. It is sometimes called clarin.
40acoustic color
41The quality or timber of a tone.
43acoustics
44The science of sound, comprising the study of its cause, nature and phenomena, and its transmission through air or other media. Musical acoustics distinguishes between musical sounds and noises. The first are the result of groups of regular vibrations, while noises are the result of irregular and fluctuating vibrations.
46Sound waves travel slower than any other waves which affect the senses, for, while the slowest light waves have a speed of four hundred and eighty-three trillions of vibrations per second, the approximate rate of audible sound waves is from sixteen to thirty-six thousand five hundred vibrations per second, though physicists differ. A familiar example of the difference in speed between light and sound waves is experienced when we see lightning and must wait some seconds for the peal of thunder to reach our ears, though both are caused by the same phenomenon.
48The manner in which sound waves are divided to produce musical sounds differs with individuals and with races. For instance, the Chinese music, which is really music, since the vibrations occur in periodic groups, seems mere noise to our ears, accustomed as they are to a different division or grouping. This distinction between music and noise is a difficult one to make. A combination of sounds, each in itself musical, may result in noise. Any sound so complex that the ear can not resolve it into its component parts we call a noise. And in this connection the value of ear training becomes apparent. The ear trained in distinguishing sound may perceive music in that which an untrained ear would characterize as noise.
50Sound is produced by the vibration of an elastic body. In the production of musical sounds that body is usually wood, metal, membrane, a string, or a column of air. The greater the elasticity of the vibrating body the greater will be the regularity of the groups of vibrations, and consequently more exact tones will be produced.
52The vibration of strings is easiest to study. If a string is pulled to one
The computer misreads some letters and numbers. Where a name matters to you, read the scan.