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Hexachloroplatinic acid is the staning material from which most platinum
compounds are made; it is also used in platinumplating baths. hexachord, in
music, six-note scale having the relative pitches of the first six tones of the major
scale (as, ...
The 11th-century Italian theorist Guido d'Arezzo described three hexachords, or
six-note scales, built of whole and half step intervals (see hexachord). As found in
primitive music, the hexatonic scale is often a “gapped” scale (i.e., it contains ...
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review