The bull-fiddle is also known as the double this
2.Also known as contrabass, string bass, bass, bass viol, bass fiddle or bull... [DOC] [TLE] Double bass [PAR] The double bass (also known as the contrabass, string bass, upright bass, bull 
fiddle, bass fiddle, bass violin, or simply bass) is the largest and lowest pitched... [DOC] [TLE] Programs - Beginner Double Bass - Ottawa Youth Orchestra Academy [PAR] The double bass, usually considered a member of the violin family, is tuned in 
fourths ... C. Also called bass fiddle, bass viol, bull fiddle, contra-bass, string bass.