This waltz by Sor, op. 18 no. 5, is full of life. It has the sixth string tuned down to D, which gives the instrument a greater sonority. It begins with a low bass sound like the cellos of an orchestra getting into its stride, before reaching up in the major section from bar 17 onwards to the high F sharp and high E like violins on the top string.
The waltz was all the rage at the moment when Sor published this collection in Paris. I’m sure that this piece should be played with great energy and very much with the dance-floor in mind.
The complete sets of Sor’s Six Waltzes op. 17 and op. 18 are available from Tecla Editions at www.tecla.com as part of the new 2019 second edition of Sor’s New Complete Works for Guitar edited by Brian Jeffery. For details about Sor’s music and his biography, please see www.tecla.com.