Counting intervals can be frustrating if it based on semitone-counting. Try using the tritote instead! (More details on the video). EDITING MISTAKE: in the last level I wrote wrongly "-0,5 semitones" and this affected the transcription process. It was meant to be "+0,5 semitones" so 25 semitones (augmented fiftheen). With YouTube video editor I blurred the -0,5 but I was not able to show +0,5 without re-uploading. So I write here that the correct solution was considering the two As and two Bbs (two octaves) and adding the semitone between A and Bb at the center (25 semitones= augmented fiftheen or minor sixtheen). But I must say this: do not consider seriously this method if you are a musical student. Intellectual Challenges is more about using memes or apparent abstruse things to challenge ourselves in musical subjects! On a discussion with a kind reddit user I find out the limits: this method does not tell you the difference between, for example, Bb-D# and Bb-Eb. The major third is the first, while Bb-Eb is a diminished fourth. If you are looking for more systhematically correct methods use scale method or white-key method. Have a nice day :D TIMESTAMPS: 00:00 Intro 00:24 Memorising the sound of the first tritones 00:59 First Goal Reached: Testing this new skill 01:18 Explanation of the method 01:35 Memorising the last tritones 02:38 Test Yourself! (3 Levels of difficulty) CREDITS AND ATTRIBUTIONS: The background music (Rachmaninoff Prelude Op.23 no 2) is given under licence from: http://www.piano-midi.de/copy.htm This was Geeky Things -Season 1 Episode 2- P.S. on the internet I found this page: https://forum.renoise.com/t/all-interval-names-all-intervals-in-semitones/48854 I found it very useful so I decided to share it with you ;) If you want to support this channel, please consider subscribing ( https://www.youtube.com/channel/UC203gKipdiQO0iX1--lB_Ew?sub_confirmation=1 ) ... https://www.youtube.com/watch?v=fh3b5xAQAcU