Six Sonatas for Violin and Harpsichord, BWV 1014–1019 alto solo. At first declamatory in the "forte" passages, the "piano" responses are expressive but subdued. Bach's knowledge of the expressive qualities of the violin is shown in the opening phrases, written so they can be played on the G string, the lowest string on the violin, regarded as having a "noble" tone. As explains, citing the opening of BWV 1017/3 as an example, the G string's "energy and powerful voice make it a whole instrument in itself and the lower this voice is, the more opportunity it gives to expression to attain the sublime." Around the violin melody, in
Poème élégiaque in D minor, Op.12 (Ysaÿe) for violin and orchestra; "Amitié, Op. 26" for two violins and orchestra, "Poème nocturne, Op. 29" for violin, cello, and orchestra; "Harmonies du soir, Op. 31" for string quartet and string orchestra. This crucial work of Ysaÿe's, which ignited his passion for poem compositions, was inspired by Shakespeare's "Romeo and Juliet". Ysaÿe builds on the virtuoso pieces of the 19th century and utilizes devices such as "scordatura", in which the violin's lowest string is tuned down to give it a darker, warmer timbre. The beginning of this piece, marked "soutenu et calme", opens with a very lyrical theme from the