RE: TUNING digest 755

Bill Alves wrote:

>Incidentally, it is interesting to note that 13th century motet composers
>quite intentionally avoided parallel thirds, though parallel fifths and
>fourths are often found.

This is not surprising: 16th-19th century polyphony quite intentionally
avoided parallel seconds, though parallel thirds and sixths are often found.
In the 13th century thirds were not yet consonant, and Pythagorean thirds
still sound bad to me today. The general rule is, dissonances must resolve
by contrary (or at least oblique) motion to a consonance, since progressing
in parallel would lead to another dissonance!


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