Search found 45 matches

by karl.nilsson
Sun Mar 11, 2018 4:52 pm
Forum: Interesting Alternative Harmonica Ideas
Topic: A family of new modded-Richter tunings
Replies: 92
Views: 46809

Re: A family of new modded-Richter tunings

That tuning of 3 major chords in a ten-holer looks like an excellent option!

I'll try it as soon as possible on my old, very seldom used SP20 in the key of F, which then will be turned into a C harp, and will come to much better use!

Thanks for the suggestion,

Karl
by karl.nilsson
Sun Mar 11, 2018 2:27 pm
Forum: Interesting Alternative Harmonica Ideas
Topic: Circle of thirds variation of Richter tuning
Replies: 10
Views: 6246

Circle of thirds variation of Richter tuning

The circle of fifths (https://en.wikipedia.org/wiki/Circle_of_fifths) is a very well-known concept in music. Slightly less known is the circle of thirds, or ladder of thirds. If you pick every second note from a diatonic scale, there will be an interval of a third between each adjacent note. In the ...
by karl.nilsson
Thu Feb 22, 2018 5:25 pm
Forum: Interesting Alternative Harmonica Ideas
Topic: Spreadsheet for calculating chord frequencies *REVISED*
Replies: 16
Views: 9087

Re: Spreadsheet for calculating chord frequencies *REVISED*

I want to add that by consonance and dissonance I mean in the relative sense such as mentioned in this very interesting article: https://en.wikipedia.org/wiki/Consonance_and_dissonance We must also remember that few musical intruments produce perfectly harmonic overtones. So depending on the instrum...
by karl.nilsson
Mon Feb 19, 2018 8:35 pm
Forum: Interesting Alternative Harmonica Ideas
Topic: Spreadsheet for calculating chord frequencies *REVISED*
Replies: 16
Views: 9087

Re: Spreadsheet for calculating chord frequencies *REVISED*

So, what conclusions can you draw from this table? Well, first of all, the 3 lower notes cause a major triad: root, major third and fifth. They sound very sweet together; they are a base in all Western music. All intervals are consonances. There are several frequency coincidences between these three...
by karl.nilsson
Wed Feb 14, 2018 4:15 pm
Forum: Interesting Alternative Harmonica Ideas
Topic: Spreadsheet for calculating chord frequencies *REVISED*
Replies: 16
Views: 9087

Re: Spreadsheet for calculating chord frequencies *REVISED*

Update: Changed the base frequency to 100 (from 440) for easier reading. Let's look at the frequencies of the notes involved in the tetrad 4:5:6:7 discussed above. Here is a table with the example frequencies 100, 125, 150 and 175 Hz. Each note has a fundamental (e.g. 100 Hz). This note has overtone...
by karl.nilsson
Mon Feb 12, 2018 9:51 pm
Forum: Interesting Alternative Harmonica Ideas
Topic: Spreadsheet for calculating chord frequencies *REVISED*
Replies: 16
Views: 9087

Re: Spreadsheet for calculating chord frequencies *REVISED*

Anyone interested in chords and frequencies mathematics, harmonics, etc. should read this article: https://en.wikipedia.org/wiki/Harmonic Here I will present a table, that is similar to one found in the above mentioned article, but here it will show what notes are actually contained in a single note...
by karl.nilsson
Wed Feb 07, 2018 6:39 pm
Forum: Interesting Alternative Harmonica Ideas
Topic: Spreadsheet for calculating chord frequencies *REVISED*
Replies: 16
Views: 9087

Re: Spreadsheet for calculating chord frequencies *REVISED*

Quite clearly in my opinion, the best sounding tetrad of the above is the one where the frequencies are related 4:5:6:7. These are pretty small numbers, which make the harmonics smooth. But look at the end of this discussion for the reason why I think this chord sounds so nice. From the root to the ...
by karl.nilsson
Sat Jan 20, 2018 1:57 pm
Forum: Interesting Alternative Harmonica Ideas
Topic: Table of reedplate dimensions?
Replies: 6
Views: 4622

Re: Table of reedplate dimensions? *REVISED*

...and 2 more


Hohner Special 20 Progressive.jpg
Hohner Special 20 Progressive
Hohner Special 20 Progressive.jpg (239.64 KiB) Viewed 4452 times

Easttop T008K.jpg
Easttop T008K
Easttop T008K.jpg (241.81 KiB) Viewed 4452 times
by karl.nilsson
Sat Jan 20, 2018 1:53 pm
Forum: Interesting Alternative Harmonica Ideas
Topic: Table of reedplate dimensions?
Replies: 6
Views: 4622

Re: Table of reedplate dimensions? *REVISED*

These are better photos of the reedplates:


PowerBender Kongsheng.jpg
PowerBender Kongsheng
PowerBender Kongsheng.jpg (238.73 KiB) Viewed 4452 times

Hohner MS Proharp.jpg
Hohner MS Proharp
Hohner MS Proharp.jpg (241.05 KiB) Viewed 4452 times
by karl.nilsson
Fri Jan 19, 2018 4:28 pm
Forum: Interesting Alternative Harmonica Ideas
Topic: Table of reedplate dimensions?
Replies: 6
Views: 4622

Re: Table of reedplate dimensions? *REVISED*

OK, I measured a few harps at home, and here are the results. I included photos of the disassembled harps on top of a millimeter grid paper (mm hardly visible, cm clearly visible). Could be useful for finding placements of screwholes, cut-outs, rounded corners, or whatever. This is just a test and a...