I scored 100%, and I'm quite hopelessly unmusical - I can't sing unaccompanied without drifting several tones up or down. A competent singer told me that what I lacked was 'pitch memory'. This so-called test is only testing pitch memory across two consecutive notes! Now, if it was testing across five or six notes, with different notes in between - "Was the last note higher than the first note, or lower, or the same?" - then I'd expect to get a really low score.