Online Cello tuner
First, tune the A string using the audio tones after selecting the string below to hear the correct pitch. If you are a beginner, just tune your other strings to the appropriate notes that your hear. Using an electronic tuner can help when in a hurry however, tuning by ear is the best way to train your ear to listen for the proper pitches. The Cello fast track program has additional tuning methods, videos, and "scale partners" that help beginners learn to play in tune quickly.