Mozart · Piano Concerto 20, 1st movement [Organ, Meantone]

We present the first movement from Mozart's Piano Concerto 20 in D minor. The solo part is played at the Organ. Tuning system is 12 notes from meantone, generated by a 697-cent fifth and octave period, spanning the chain from Eb to G#. This is different from the historical tuning used by Mozart, probably 1/6-comma meantone, instead. Sound Production: (c) Claudi Meneghin @ Library of Congress, claim SRu 1 345]

"Lament & Deception", Chacony in 55edo for Two Violins & Cello

This is my Chacony "Lament & Deception" in 55-equal division of the octave (very close to sixth-comma meantone) for two violins and cello. The piece consists in 33 variations on the lament bass, followed by a deceptive cadence. Each section is a diatonic semitone higher than the preceding one, hence we come back to the orginal tonality (C) every 11 steps (since in 55edo 11 diatonic semitones = 1 octave).  

Canon at the Diatonic Semitone on an Ancient Lombard Theme [55edo]

A canon at the diatonic semitone on an ancient Lombard theme, for organ. Tuning is 55-equal division of the octave, close to sixth-comma meantone, a tuning possibly used by Mozart.

The Dominant Seventh Chord: Modulating 7th over the Just Major Triad

We present a tuning comparison about the dominant seventh chord, consisting in various sevenths intervals plus a constant major triad, tuned into just intonation. Sevenths spam the (descending) interval between 1050 cents and 946 cents. This includes the just harmonic seventh at 968 cents.

Pachelbel's Canon in 3 tunings: Just intonation, Meantone and 12-equal

Pachelbel's Canon in D, in three different tunings: Just (with septimal C), Quarter-comma Meantone, and the usual 12-equal, all played at midi organ.

Registration: 

• 1st voice: Montre 8 + Nazard 2 & 2/3
• 2nd voice: Montre 8 + Tierce 1 & 3/5
• 3rd voice: Montre 8 + Larigot 1 & 1/3
• Bass: Principale 16+8

Fantasy "Almost a Fugue" on a Theme by Giuliani, for String Quartet [31edo]

A short Fantasy in form of a Fugue for string quartet on a theme by Giuliani, from the third movement of his Guitar Concerto in A, op.36. Tuning is 31-equal division of the octave, very close to quarter-comma meantone.

Fugue on Greensleeves for Organ in 31edo

A little fugue for organ on the Greensleeves theme, in 31edo (close to quarter-comma meantone). Plenty of septimal harmonies are used. Notation: Scala E31.