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MMM – Memos on Math/Music: This site lists memos on music and math by the site owner.

The music will be listed as mp3 files. Those files have a portrait of the composer as an eye-catcher:
e.g., J. S. Bach’s music on periodic instrumentation has the following portrait,

whereas modern interpretation of J.S. Bach’s music has the following portrait.

Many thanks from the site owner to MuseScore https://musescore.com/ without which he can never create mp3 files.
The math will be listed as PDF files. Some of them are typed using conventional word processors, and others are in LaTeX. Those files have “Girl with a Pearl Earring” by Johannes Vermeer as an eye-catcher: see below.

The site owner would like to express his appreciation to his cousin and the spouse (of the cousin) for suggesting that he should set up a site to list his “achievement” so far.
To view the content, click the URL line for each index below.
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Index for the work by J. S. Bach
https://wordpress.com/post/mathmusic52.com/2030
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Index for memo on mathematics
https://wordpress.com/post/mathmusic52.com/2038
Index for the work by D. Scarlatti
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BWV 1039: J. S. Bach “Trio sonata” in G major

Created using MuseScore.
Tuned with A = 415 Hz.
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BWV 1013: J. S. Bach ”Partita for solo flute” in A minor

Created using MuseScore.
Tuned with A = 415 Hz.
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BWV 565: J. S. Bach “Toccata and Fugue” in D minor

Created using MuseScore.
Tuned with A = 415 Hz.
Probably the best-known organ work of J. S. Bach. It is conjectured (but, of course nobody alive can prove or disprove) that this is a transcription by the composer himself of a lost violin piece.
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K 9 : D. Scarlatti “Sonata in D minor”

Created using Muse Score.
Tuned with A = 415 Hz.
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K 466: D. Scarlatti “Sonata” in F minor

Created using MuseScore.
Tuned with A = 415 Hz.
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BWV 1048: J. S. Bach “Brandenburg concerto III” in G major

Created using MuseScore.
This piece is tuned with the Baroque tuning, i.e., A = 415 Hz.
The continuo is played on the violone, not on the harpsichord.
As for the second movement, the site owner followed Ton Koopman and used the second movement of BWV 916: Toccata in G major. However, the site owner has chosen strings instead of harpsichord.
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BWV 1048: J. S. Bach “Brandenburg concerto III” in G major on electric guitars

Created using MuseScore.
The modern tuning A = 440 Hz is specified.
Partly inspired by Ben Bosco https://www.youtube.com/watch?v=yCkcY-mZ1pc.
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BWV 1061: J. S. Bach “Concerto for two harpsichords” in C major on electric instruments

An all-electric-instrument interpretation of the famous keyboard concerto by J. S. Bach.
Created using MuseScore.
The modern tuning A = 440 Hz is used.
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BWV 1060R: J. S. Bach “Re-constructed concerto” in C minor on electric guitars

Inspired by the videos of Chirs Frank, https://www.youtube.com/watch?v=9GUbgUdNA44 and https://www.youtube.com/watch?v=ufrPD7z3JvU, the site owner created an all-electric-guitar version of BWV 1060R. He respects the modern tuning A = 440 Hz adopted by Chris Frank in appreciation of his effort.
The site owner believes this rendition sounds better than the ones by “re-constructionists”, e.g., this one https://www.youtube.com/watch?v=ZIaiB9X2LGs.
Te music sheet can be found in https://imslp.org/wiki/Main_Page.
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BWV 243a: J. S. Bach “Magnificat” E-flat major

Created using MuseScore.
Caveat: This MP3 is tuned with the Baroque tuning, i.e, A = 415Hz.
The music sheet is in https://imslp.org/wiki/.
01: Magnificat anima mea
02: Et exclutavit spiritus meus
A: Vom himmel hoch
03: Quia respexit humilitatem + 04: Omnes generationes
05: Quia fecit mihi magna
B: Freut euch und jubiliere
06: Et misericorida
07: Fecit potentiam
C: Gloria in excelsis Deo
08: Deposuit potentes
09: Esurientes
D: Virga Jesse floruit Measures 30 – 51 reconstructed based on BWV 110, Duett
10: Suscepit Israel
11: Sicut locutus est
12: Gloria Patri – Sicut erat in principio