What is another word for bull fiddle?
Pronunciation: [bˈʊl fˈɪdə͡l] (IPA) 
Bull fiddle is a colloquial term used for a double bass, an instrument that is commonly used in jazz, blues, and orchestral music. Synonyms for this term include upright bass, bass fiddle, contrabass, and bass violin. These names are all used interchangeably, depending on the region and the style of music being played. The instrument is a vital component of the rhythm section, providing a strong foundation for the melody and the harmony. Despite its size, the double bass is a versatile instrument and can be played using a range of techniques, including plucking, bowing, and tapping.
