Eagle Tuning Comparison

By Tony Hisgett from Birmingham, UK, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=18249270

By Tony Hisgett from Birmingham, UK, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=18249270

Eagle is a new tuning that John O’Sullivan and Jake Freivald collaborated on. I performed a three part guitar / bass improvisation in 12 equal and used melodyne to tune it to to the new tuning since John has targeted guitar for this tuning. There are three presentations – the original clean 12 equal track and the clean melodyne retuned version. Lastly I couldn’t resist adding some effects to the eagle version which “dressed” the instruments into a “radio” version. The asterisks denote chords used in the improvisation, though I freely added embellishments and non-chord tones in places.

Eagle

12 Equal

Eagle Dressed

A Major chord is 2:3:4:5:6:8
A minor chord is 10:15:20:24:30:40
A three-four-five chord is 3:4:5:6

*E (1/1) 2:3:4:5:6:8 and 10:15:20:24:30:40 (major and minor appear)
F (16/15) 2:3:4:5:6:8
F# (9/8) 3:4:5:6
*G (6/5) 2:3:4:5:6:8
G# (5/4) 10:15:20:24:30:40
*A (4/3) 2:3:4:5:6:8 and 10:15:20:24:30:40
A# (7/5) 7:9:12 and 15:20:24 and 21:28:36
*B (3/2) 2:3:4:5:6:8 and 10:15:20:24:30:40
C (8/5) 2:3:4:5:6:8
C# (5/3) 10:15:20:24:30:40
D (9/5) 3:4:5:6
D# (15/8) 10:15:20:24:30:40

37 edo Aeolian Harp Prelude

aeolian37Capture Click to enlarge the Melodyne “score” in 37 edo

37 edo Aeolian Harp Prelude is a piece composed by modifying with Melodyne a electric aeolian harp drone chord played by the wind. The approximate original tuning was re-tuned to 37 edo from an imported a scala file I made and then the piece composed by adjusting the individual notes.

An Equitable Arrangement (37 edo subset)

page1-463px-Guide_to_Equitable_Sharing.pdf


An Equitable Arrangement is an improvised solo piano piece played on an 2011 Alesis Q49 using pianoteq in Margo Schulter’s equable heptatonic tuning of 37 edo with the trivalent property:

! 37ed2-equable_trivalent.scl
!
Equable heptatonic with trivalence property
7
!
194.59459
356.75676
486.48649
681.08108
843.24324
1037.83784
2/1

This is 6-5-4-6-5-6-5 steps of 37 edo