Owing to the scoring of modern composers, however, it was found necessary to adopt an accordance of four strings in order to obtain the additional lower notes required, although this entails the sacrifice of beauty of tone, the three-stringed instrument being more sonorous. Some orchestras make a compromise dividing the double basses into two equal sections of three and four-stringed basses. The four strings are tuned in fourths:—
. Mr A. C. White, finding that an additional lower compass was required, first tuned his double bass with three strings to
afterwards adding a fourth string, the lower D. By this accordance the third and fourth strings gain additional power and clearness from the fact that the first and second, being their octaves higher, vibrate in sympathy, obviating the necessity of making the ’cello play in octaves with the double basses to increase the tone when the lowest register is used. In order to obtain equal sonority on his double bass with four strings, Mr White[2] found it necessary to have a wider bridge measuring about 5 in., so that the distance between the strings should remain the same as on a double bass with three strings, thus allowing plenty of room for vibration. The neck was also widened in proportion. A five-stringed double bass was sometimes used in Germany tuned either to
or to
but such instruments have been almost superseded by those with four strings. A somewhat larger double bass with five strings by Karl Otho of Leipzig was introduced between 1880 and 1890 with the following accordance:—
