See this dialog response. The player may tune the low E string down to the lowest note required in the piece: D or C. Four-string basses may be fitted with a "low-C extension" (see below). What came before?
CONVERSATION:Conversation:
P1: What are the lowest notes on a double bass?
P2: Throughout classical repertoire, there are notes that fall below the range of a standard double bass.
P1: Are they used in compositions?
P2: Notes below low E appear regularly in the double bass parts found in later arrangements and interpretations of Baroque music.
P1: What are the highest notes?
P2: In the Classical era, the double bass typically doubled the cello part an octave below, occasionally requiring descent to C below the E of the four-string double bass.
P1: Are there any other interesting aspects about this article?
P2: In the Romantic era and the 20th century, composers such as Wagner, Mahler, Busoni and Prokofiev also requested notes below the low E. There are several methods for making these notes available to the player.
P1: What are some methods?
P2: Players with standard double basses (E–A–D–G) may play the notes below "E" an octave higher or if this sounds awkward, the entire passage may be transposed up an octave.
P1: Are there other methods?
P2: 