Most people who think they are tone deaf do in fact have the pitch discrimination abilities necessary to be great musicians. It is actually a lack of musical training which is to blame for their apparent difficulty judging notes.
This Tone Deaf Test is designed to measure your pitch sensitivity. This tests whether you have the fundamental abilities you need, which can then be developed and improved through ear training and singing practice.
The test is divided into three stages, each of which tests a different pitch judgement skill. Your overall score is used to determine the likelihood that you are truly tone deaf. If you pass the test you can be quite confident you have the fundamental pitch abilities required to become a good musician.
Please note that although the test has been designed by experienced music educators based on scientific research into tone deafness, it is not a clinical diagnosis. If you fail the test, this is not diagnosis of a cognitive impairment and it is possible you can still develop your ears for music.