User:Holger Stoltenberg/sandbox: Difference between revisions

draft table finalized, explanatory text
No edit summary
Line 18: Line 18:


== Number of distinct intervals ==
== Number of distinct intervals ==
The first five octaves of Tonal Space contain a fairly large number of intervals footed on a common tonic of 0 ¢. The intervals are well structured in rows, with each row corresponding to a mode of the overtone scale. It may be of interest to the reader to learn how many ''different'' intervals are present, since some are obviously doubled. <br>
The first five octaves of Tonal Space contain a fairly large number of intervals footed on a common tonic of 0 ¢. The intervals are well structured in rows, with each row corresponding to a mode of the overtone scale. It may be of interest to the reader to know how many ''different'' intervals are present, since some obviously occur more than once. <br>
To find out, we will scan the Horizon Chart line by line (mode by mode), from the bottom up. Mode 1 has no intervals between the fundamental and the next octave. In Mode 2 we find a pure fifth, the third harmonic. This is the first time the pure fifth appears, and it will not be counted again as we scan.
To find out, we will scan the Horizon Chart line by line (mode by mode), from the bottom up. Mode 1 has no intervals between the fundamental and the next octave. In Mode 2 we find a pure fifth, the third harmonic. This is the first time the pure fifth appears, and - like any other interval - it is only considered once as we scan.
Table 1 summarizes the scanning results from Mode 1 through Mode 16.
Table 1 summarizes the scanning results from Mode 1 through Mode 16.