D = A220 - Revision history

Martinwguy: /* Score */

2021-07-02T16:02:42Z

Score

← Older revision		Revision as of 16:02, 2 July 2021
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	=Score=		=Score=
	[[Image:~~D = 220~~.pdf\|thumb\|right]]		[[Image:DisA220.pdf\|thumb\|right]]
	Here is the typeset score in four formats:		Here is the typeset score in four formats:
	* [[:File:~~D = 220~~.txt\|the LilyPond source file]]		* [[:File:DisA220.txt\|the LilyPond source file]]
	* the typeset score as a PDF (right)		* the typeset score as a PDF (right)
	* [[:File:~~D = 220~~.midi\|a MIDI file]] that you can [[Media:~~D = 220~~.midi\|listen to]]		* [[:File:DisA220.midi\|a MIDI file]] that you can [[Media:DisA220.midi\|listen to]]
	* An audio file of the MIDI file played on a cheesy electric piano		* An audio file of the MIDI file played on a cheesy electric piano
	{{Play\|~~D = 220~~}}		{{Play\|DisA220}}

	[[Category:Piece]]		[[Category:Piece]]
	[[Category:Score]]		[[Category:Score]]

Martinwguy at 15:46, 2 July 2021

2021-07-02T15:46:18Z

← Older revision		Revision as of 15:46, 2 July 2021
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	This information is sufficient to reconstruct the piece.		This information is sufficient to reconstruct the piece.

			=Score=
			[[Image:D = 220.pdf\|thumb\|right]]
			Here is the typeset score in four formats:
			* [[:File:D = 220.txt\|the LilyPond source file]]
			* the typeset score as a PDF (right)
			* [[:File:D = 220.midi\|a MIDI file]] that you can [[Media:D = 220.midi\|listen to]]
			* An audio file of the MIDI file played on a cheesy electric piano
			{{Play\|D = 220}}

	[[Category:Piece]]		[[Category:Piece]]
			[[Category:Score]]

Martinwguy: /* Analysis */

2021-07-02T12:52:51Z

Analysis

← Older revision		Revision as of 12:52, 2 July 2021
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	=Analysis=		=Analysis=
	The piece consists of six bars called A to F, each of which is contructed from three or four of eight musical phrases, [1] to [8], which are played on six notes, bottom C, D, Eb, A, Bb and top C. The phrases are:		The piece consists of six bars called A to F, each of which is contructed from three or four of eight musical phrases, [1] to [8], which are played on six notes, bottom C, D, Eb, A, Bb and top C, transposed so that the D is a 220Hz, the A below middle C. The phrases are:
	<PRE>		<PRE>
	[1] A		[1] A

Martinwguy: /* Analysis */

2021-07-02T12:48:18Z

Analysis

← Older revision		Revision as of 12:48, 2 July 2021
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	The table in the bottom right corner gives all the multiples of 2.6 seconds from 1 to 42, so presumably that is the length of a note of duration (1).		The table in the bottom right corner gives all the multiples of 2.6 seconds from 1 to 42, so presumably that is the length of a note of duration (1).

	The matrix above left of it gives the duration of each phrase when it is used in a particular bar~~; this information~~ is derived from the score, ~~however, and adds nothing~~ extra.		The matrix above left of it gives the duration of each phrase when it is used in a particular bar and is derived from the score, adding no extra information.

			This information is sufficient to reconstruct the piece.

	[[Category:Piece]]		[[Category:Piece]]

Martinwguy: /* Analysis */

2021-07-02T12:46:01Z

Analysis

← Older revision		Revision as of 12:46, 2 July 2021
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	[8] A Bb A C' A Eb D C,		[8] A Bb A C' A Eb D C,
	</PRE>		</PRE>
	where "<TT>C,</TT>" means the bottom C and "<TT>C'</TT>" the top one, and the bars ~~use~~ the phrases:		where "<TT>C,</TT>" means the bottom C and "<TT>C'</TT>" the top one, and the bars are composed of the phrases:
	<PRE>		<PRE>
	A: [1] [2] [3] [5]		A: [1] [2] [3] [5]

Martinwguy: /* Analysis */

2021-07-02T12:45:25Z

Analysis

← Older revision		Revision as of 12:45, 2 July 2021
Line 15:		Line 15:
	[8] A Bb A C' A Eb D C,		[8] A Bb A C' A Eb D C,
	</PRE>		</PRE>
	where "C," means the bottom C and "C'" the top one, and the bars use the phrases:		where "<TT>C,</TT>" means the bottom C and "<TT>C'</TT>" the top one, and the bars use the phrases:
	<PRE>		<PRE>
	A: [1] [2] [3] [5]		A: [1] [2] [3] [5]

Martinwguy: /* Analysis */

2021-07-02T12:44:51Z

Analysis

← Older revision		Revision as of 12:44, 2 July 2021
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	[7] A Bb A C' A		[7] A Bb A C' A
	[8] A Bb A C' A Eb D C,		[8] A Bb A C' A Eb D C,
	<PRE>		</PRE>
	where "C," means the bottom C and "C'" the top one, and the bars use the phrases:		where "C," means the bottom C and "C'" the top one, and the bars use the phrases:
	<PRE>		<PRE>

Martinwguy: Created page with "{{Thumb|DD115438|DD115438}} D = A220 is what we call an unidentified piece of music by Delia for which there is an unconventional mathematical score in her papers. =..."

2021-07-02T12:44:32Z

Created page with "{{Thumb|DD115438|DD115438}} D = A220 is what we call an unidentified piece of music by Delia for which there is an unconventional mathematical score in her papers. =..."

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{{Thumb|DD115438|[[DD115438]]}}

[[D = A220]] is what we call an unidentified piece of music by Delia for which there is an unconventional mathematical score in her papers.

=Analysis=
The piece consists of six bars called A to F, each of which is contructed from three or four of eight musical phrases, [1] to [8], which are played on six notes, bottom C, D, Eb, A, Bb and top C. The phrases are:
<PRE>
[1] A
[2] A D
[3] A Bb A D
[4] A Bb A Eb
[5] A Bb A Eb D
[6] A Bb A Eb D C,
[7] A Bb A C' A
[8] A Bb A C' A Eb D C,
<PRE>
where "C," means the bottom C and "C'" the top one, and the bars use the phrases:
<PRE>
A: [1] [2] [3] [5]
B: [2] [4] [6]
C: [2] [3] [7] [2]
D: [2] [3] [4] [3]
E: [2] [5] [3]
F: [2] [7] [8]
</PRE>

The note lengths within each phrase, written in a circle above each note, are different each time the phrase is used, hence so is the length of each phrase, written in a circle above each phrase's bracket. The cumulative running time of the piece is written under the stave, for a total of 6 minutes and 50 seconds.

The table in the bottom right corner gives all the multiples of 2.6 seconds from 1 to 42, so presumably that is the length of a note of duration (1).

The matrix above left of it gives the duration of each phrase when it is used in a particular bar; this information is derived from the score, however, and adds nothing extra.

[[Category:Piece]]