A chaconne ( shə-KON, French: [ʃakɔn]; Spanish: chacona [tʃaˈkona]; Italian: ciaccona [tʃakˈkoːna]; earlier English: chacony) is a type of musical composition often used as a vehicle for variation on a repeated short harmonic progression, often involving a fairly short repetitive bass-line (ground bass) which offers a compositional outline for variation, decoration, figuration and melodic invention. In this it closely resembles the passacaglia. It originates and was particularly popular in the Baroque era; a large number of Chaconnes exist from the 17th and 18th centuries. The ground bass, if there is one, may typically descend stepwise from the tonic to the dominant pitch of the scale; the harmonies given to the upper parts may emphasize the circle of fifths or a derivative pattern thereof.

Sofia Asgatovna Gubaidulina (24 October 1931 – 13 March 2025) was a Soviet and Russian composer of modernist sacred music. She was highly prolific, producing numerous chamber, orchestral and choral works. Her output has been described as exploring the tensions between Western and Eastern music, and has been characterised by "innovative use of microtonality and chromaticism, rhythm over form and use of contrasting tonalities. Her compositions have been praised for their "emotional intensity", while she described her music as bringing legato, that is, a sense of "connected flow into the fragmented staccato of life." Alongside Alfred Schnittke, Arvo Pärt and Edison Denisov, Gubaidulina was considered one of the foremost composers of the former Soviet Union who were disfavoured by the authorities including the KGB, but whose work became frequently commissioned and performed by major international orchestras, with her first major breakthrough being her violin concerto Offertorium (1980).

Sofia Asgatovna Gubaidulina (24 October 1931 – 13 March 2025) was a Soviet and Russian composer of modernist sacred music. She was highly prolific, producing numerous chamber, orchestral and choral works. Her output has been described as exploring the tensions between Western and Eastern music, and has been characterised by "innovative use of microtonality and chromaticism, rhythm over form and use of contrasting tonalities. Her compositions have been praised for their "emotional intensity", while she described her music as bringing legato, that is, a sense of "connected flow into the fragmented staccato of life." Alongside Alfred Schnittke, Arvo Pärt and Edison Denisov, Gubaidulina was considered one of the foremost composers of the former Soviet Union who were disfavoured by the authorities including the KGB, but whose work became frequently commissioned and performed by major international orchestras, with her first major breakthrough being her violin concerto Offertorium (1980).

Sofia Asgatovna Gubaidulina (24 October 1931 – 13 March 2025) was a Soviet and Russian composer of modernist sacred music. She was highly prolific, producing numerous chamber, orchestral and choral works. Her output has been described as exploring the tensions between Western and Eastern music, and has been characterised by "innovative use of microtonality and chromaticism, rhythm over form and use of contrasting tonalities. Her compositions have been praised for their "emotional intensity", while she described her music as bringing legato, that is, a sense of "connected flow into the fragmented staccato of life." Alongside Alfred Schnittke, Arvo Pärt and Edison Denisov, Gubaidulina was considered one of the foremost composers of the former Soviet Union who were disfavoured by the authorities including the KGB, but whose work became frequently commissioned and performed by major international orchestras, with her first major breakthrough being her violin concerto Offertorium (1980).

Sofia Asgatovna Gubaidulina (24 October 1931 – 13 March 2025) was a Soviet and Russian composer of modernist sacred music. She was highly prolific, producing numerous chamber, orchestral and choral works. Her output has been described as exploring the tensions between Western and Eastern music, and has been characterised by "innovative use of microtonality and chromaticism, rhythm over form and use of contrasting tonalities. Her compositions have been praised for their "emotional intensity", while she described her music as bringing legato, that is, a sense of "connected flow into the fragmented staccato of life." Alongside Alfred Schnittke, Arvo Pärt and Edison Denisov, Gubaidulina was considered one of the foremost composers of the former Soviet Union who were disfavoured by the authorities including the KGB, but whose work became frequently commissioned and performed by major international orchestras, with her first major breakthrough being her violin concerto Offertorium (1980).

Sofia Asgatovna Gubaidulina (24 October 1931 – 13 March 2025) was a Soviet and Russian composer of modernist sacred music. She was highly prolific, producing numerous chamber, orchestral and choral works. Her output has been described as exploring the tensions between Western and Eastern music, and has been characterised by "innovative use of microtonality and chromaticism, rhythm over form and use of contrasting tonalities. Her compositions have been praised for their "emotional intensity", while she described her music as bringing legato, that is, a sense of "connected flow into the fragmented staccato of life." Alongside Alfred Schnittke, Arvo Pärt and Edison Denisov, Gubaidulina was considered one of the foremost composers of the former Soviet Union who were disfavoured by the authorities including the KGB, but whose work became frequently commissioned and performed by major international orchestras, with her first major breakthrough being her violin concerto Offertorium (1980).