Diego Ortiz is important to history not only as a leading Spanish composer of the Renaissance era, but also as the author of Trattado di glosas, the first printed instruction book about ornamentation for bowed string orchestras. This was an international success, and was published in Italian. The book contains entirely written-out ornamentations designed to fit specific time periods. The player is directed to determine which was most appropriate, and to write it into his part at the right spot. Furthermore, the work contains studies for bass instruments, treble viol, and keyboard, as well as some madrigals. Like most authentic books on ornamentation and instruction of the period, it is a valuable source of information on performing style of the time. Not much is known about Ortiz's life. The two versions of his book were published ...
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