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Codes for data archiving, interchange, and analysis

Codes for data archiving, interchange, and analysis. Music 253/CS 275A Stanford University. Distinguishing features. Neither time nor space is a dominant consideration Focus is on repurposable data , interoperability Examples

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Codes for data archiving, interchange, and analysis

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  1. Codes for data archiving, interchange, and analysis Music 253/CS 275A Stanford University

  2. Distinguishing features • Neithertimenorspaceis a dominant consideration • Focus is on repurposable data, interoperability • Examples • Archiving: canonical format that facilitates interoperability • Interchange: canonical format that is easily interpreted by sending and receiving systems whose formats may be unknown • Analysis: flexible format that can be modified to suit a range of needs (can sometimes be distilled from richer format) 2014 Eleanor Selfridge-Field

  3. Distinguishing features • Neither time nor space is a dominant consideration • Environment may be extensive; focus on interoperability • Examples • Archiving: EsAC (monophonic), MuseData(polyphonic) • Interchange: MusicXML, MEI • Analysis: Humdrum Toolkit (main format = kern) 2014 Eleanor Selfridge-Field

  4. EsAC network model (1982-1994) Folk music research Mainly assigned to students Developed in Essen, DE, by Helmut Schaffrath from the Kiel/DVA archive and other sources esac-data.org Above: H. Schaffrath (1942-1994) L: EwaDahlig Often transcribed by hand Often simplified, No text underlay 2014 Eleanor Selfridge-Field

  5. Music rep. in general Pitch name Pitch inflection Octave name or number EsAC specifics Pitch = number Inflection = symbol Octave = symbol Essen Associative Code (EsAC) + Octave (Unsigned) - Octave See http://www.esac-data.org 2014 Eleanor Selfridge-Field

  6. EsAC code vs other codes http://esac-data.org/ Mozart trio (EsAC with 5 data translations http://kern.humdrum.org/search?s=t&keyword=essen&type=Text 2014 Eleanor Selfridge-Field

  7. EsAC: Essen Folksong Collection • Monophonic music (8500 songs) • Purposes • Archiving • Comparing versions • Teaching • Sound output Pitch and duration uncoupled 2014 Eleanor Selfridge-Field

  8. EsAC: Essen Folksong Collection • Monophonic music (8500 songs) • Purposes • Archiving • Comparing versions • Teaching • Sound output • Contributions • Earliest model of computer analysis (Leppig, 1987) Pitch and duration uncoupled R: nearest matches for Mozart trio 2014 Eleanor Selfridge-Field

  9. (1) F[BALLADECUT[Schloss in Oesterreich Es ligt ein schlos in Ostereich,]CNR[das ist gar wol erbawet]REG[Mitteleuropa, Deutschland]SRC[1, S. 250 1549 gedruckt in Nuernberg]KEY[Q0024A 08 F FREI]MEL[1_ 1_2_3__4_ 5__3_1__0_ 1_ 3_4_5__1_ 1__-7-6-7_1_-6__ -5__0_ 5_ 5_5_6_.56_ 5__4_3__0_ 6_ 5_2_3_1_ -7_1_2_3__ 212__ 1___ //] >>FCT[Ballade, Gefangenschaft, Hinrichtung, Tod, Vergeltung]CMT[Kleinere Melodievarianten aus anderen Quellen abgedruckt. Refrainartiges Anhaengsel an der letzten Zeile.] (1) F[BALLADECUT[Schloss in Oesterreich Es ligt ein schlos in Ostereich,]CNR[das ist gar wol erbawet]REG[Mitteleuropa, Deutschland]SRC[1, S. 250 1549 gedruckt in Nuernberg]KEY[Q0024A 08 F FREI]MEL[1_ 1_2_3__4_ 5__3_1__0_ 1_ 3_4_5__1_ 1__-7-6-7_1_-6__ -5__0_ 5_ 5_5_6_.56_ 5__4_3__0_ 6_ 5_2_3_1_ -7_1_2_3__ 212__ 1___ //] >>FCT[Ballade, Gefangenschaft, Hinrichtung, Tod, Vergeltung]CMT[Kleinere Melodievarianten aus anderen Quellen abgedruckt. Refrainartiges Anhaengsel an der letzten Zeile.] Sample EsAC record F [BALLADE CUT [Schloss in Oesterreich Es ligt ein schlos in Ostereich,] CNR [das ist gar wol erbawet] REG [Mitteleuropa, Deutschland] SRC [1, S. 250 1549 gedruckt in Nuernberg] KEY [Q0024A 08 F FREI] MEL [1_ 1_2_3__4_ 5__3_1__0_ 1_ 3_4_5__1_ 1__-7-6-7_1_-6__ -5__0_ 5_ 5_5_6_.56_ 5__4_3__0_ 6_ 5_2_3_1_ -7_1_2_3__ 212__ 1___ //] >> FCT [Ballade, Gefangenschaft, Hinrichtung, Tod, Vergeltung] CMT [Kleinere Melodievarianten aus anderen Quellen abgedruckt. Refrainartiges Anhaengsel an der letzten Zeile.] 2014 Eleanor Selfridge-Field

  10. EsAC: Essen Folksong Collection • Contributions • Earliest model of computer analysis (Leppig, 1987) • Similarity ratings R: nearest matches for Mozart trio 2014 Eleanor Selfridge-Field

  11. EsAC: Essen Folksong Collection • Similarity ratings • Prioritizing features of motion • Contour • Direction • Intervallic movement • Durational change • Melodic structure R: nearest matches for Mozart trio 2014 Eleanor Selfridge-Field

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