| 词条 | Magic chord | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 释义 |
The Magic Chord is a chord and installation (1984) created by La Monte Young, consisting of the pitches E, F, A, B{{music|b}}, D, E, G, and A, in ascending order and used in works including his The Well-Tuned Piano and Chronos Kristalla (1990).[3] The latter was performed by the Kronos Quartet and features all notes of the magic chord as harmonics on open strings.[3] The quartet has been described as, "offer[ing] perhaps the ultimate challenge in performing in a just environment."[4] Described as, "complex and throbbing," the chord does not contain its fundamental (see root (chord)),[5] E{{music|b}}, and is a subset of the Romantic Chord,[6] G-Dorian in eight octaves, spelled G,A,B,C,D,E,F{{music|#}},G.[7] "When the Magic Opening Chord is obtained by playing the Opening Chord at one end of a room while the Magic Chord is played at the other (as Young set it up for me), the feeling-changes of the stereo effect as you move back and forth[-]are dazzling."[5] The opening chord consists of E{{music|b}}, B{{music|b}}, C, E{{music|b}}, F, B{{music|b}} (ratios 4:6:7:8:9:12 {{audio|La Monte Young - Opening chord on E-flat.mid|Play}}),[8] adding C[9] and E{{music|b}} to the magic chord when combined as the magic opening chord ({{audio|La Monte Young - Magic opening chord.mid|Play}}). The Well-Tuned Piano is based on a pitch lattice of perfect fifths and harmonic sevenths, tuned as follows:[10][11]
For example, G (21/16) is the harmonic seventh of the perfect fifth (7/4 * 3/2 = 21/16):
Sources1. ^{{cite journal |last1=Gann |first1=Kyle |last2= |first2= |year=1993 |title=La Monte Young's The Well-Tuned Piano |journal=Perspectives of New Music |volume=31 |issue= 1 |pages=162 |publisher= |doi= 10.2307/833045|jstor=833045 }} {{subscription}} {{composition-stub}}{{music-theory-stub}}{{Chords}}2. ^Gann (1993), p. 143. 3. ^1 2 Grimshaw, Jeremy (2011). Draw A Straight Line and Follow It: The Music and Mysticism of La Monte Young, p.176. {{ISBN|978-0-19-974020-8}}. 4. ^Strange, Patricia and Strange, Allen (2001). The Contemporary Violin: Extended Performance Techniques, p.160. {{ISBN|978-0-520-22409-4}}. 5. ^1 Duckworth, William (2009). Sound and Light: La Monte Young and Marian Zazeela, p.187. {{ISBN|978-0-8387-5738-3}}. 6. ^Potter, Keith (2002). Four Musical Minimalists: La Monte Young, Terry Riley, Steve Reich, Philip Glass, p.86. Cambridge. {{ISBN|9780521015011}}. 7. ^Potter (2002), p.85-6. 8. ^Duckworth (2009), p.168. 9. ^Potter (2002), p.87. 10. ^Gann, Kyle (1997). "La Monte Young's The Well-Tuned Piano", La Monte Young Web Page. 11. ^Duckworth p. 166. 4 : 7-limit tuning and intervals|Chords|Installation art|Minimalistic compositions |
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