context: PitchLengthExamplesB♭4 or A42.25,2.12ft (69,65cm)piccolo trumpetE♭43.125ft (95.3cm)soprano cornet, soprano trumpetB♭34.5ft (1.4m)trumpet, cornet, flugelhorn, soprano tromboneE♭36.75ft (2.06m)alto horn, alto trombone, alto trumpetB♭29ft (2.7m)tenor and bass trombone, baritone horn, euphonium, B♭ horn, bass trumpetF212ft (3.7m)French hornE♭2 or F213.5,12ft (4.1,3.7m)bass tubaB♭1 or C218,16ft (5.5,4.9m)contrabass tuba
question: What is the lowest brass instrument?
answers.text: contrabass tuba contrabass tuba