La plus que lente, L. 121, is a waltz for solo piano written by Claude Debussy in 1910, shortly after his publication of the Préludes, Book I. The piece debuted at the New Carlton Hotel in Paris, where it was transcribed for strings and performed by the popular 'gipsy' violinist, Léoni, for whom Debussy wrote it (and who was given the manuscript by the composer).
The Long Line