<P> A sonorous foundation for the melodic line is provided by the widely spaced notes in the accompaniment, connected by the damper pedal . The waltz - like accompaniment gently emphasizes the 12 / 8 meter, 12 beats to the measure subdivided into four groups of 3 beats each . </P> <Table> <Tr> <Td> The opening bars and main theme . </Td> <Td> A part of the "C" theme . </Td> </Tr> </Table> <Tr> <Td> The opening bars and main theme . </Td> <Td> A part of the "C" theme . </Td> </Tr> <Ul> <Li> John Rink "Structural momentum and closure in Chopin's Nocturne Op 9 No 2" in Schenker Studies 2 (ed . Carl Schachter, Hedi Siegel) pp102--127 Cambridge University Press, 2006 ISBN 0 - 521 - 02832 - 9, ISBN 978 - 0 - 521 - 02832 - 5 . </Li> <Li> Jean - Jacques Eigeldinger "Nocturne op . 9 / 2, E flat major" in Chopin: pianist and teacher as seen by his pupils (ed. Jean - Jacques Eigeldinger, Roy Howat) pp77--79 Cambridge University Press, 1989 ISBN 0 - 521 - 36709 - 3, ISBN 978 - 0 - 521 - 36709 - 7 . </Li> <Li> Eleanor Bailie "Nocturne No. 2 in E flat major" in Chopin: a graded practical guide (Eleanor Bailie, Issue 3 of The pianist's repertoire) pp303--306 Kahn & Averill, 1998 ISBN 1 - 871082 - 67 - 6, ISBN 978 - 1 - 871082 - 67 - 8 . </Li> </Ul>

Nocturne op 9 no 1 b flat minor