detect chords from audio files

• Video sponsored by Hook Theory, providing music theory resources.
• Chord progressions can be thought of using numbers (I, IV, V) to describe their relative function within a key.
• Example of chord progressions: C, F, G can be referred to as 1, 4, 5.
• Memorizing an example or two of each chord function can make it easier to pick out chord progressions by ear.
• Outro music available on the YouTuber’s second channel.
• Extra special thanks to Patreon supporters.
• Common chord progression: one-five-six-four.
• Example of chord function five (V) - “Summer of ‘69” by Bryan Adams.
• Example of chord function five (V) - “Let It Be” by The Beatles.
• Common chord function four (IV).
• Example of chord function four (IV) - “Born in the USA” by Bruce Springsteen.
• Common chord function six (vi).
• Example of chord function six (vi) - “Stand by Me” by Ben E. King.
• Example of chord function one (I) and six (vi) - “Send My Love (To Your New Lover)” by Adele.
• Common chord function two (ii).
• Example of chord function two (ii) - “I’d Rather Go Blind” by Etta James.
• Hook Theory offers music theory analysis and interactive textbooks.
• Chromatic notes outside the major key can also be used in chord progressions.
• Example of flat seven (bVII) chord - “Hey Jude” by The Beatles.
• Example of major version of second (II) chord - “Eight Days a Week” by The Beatles.
• Example of major version of third (III) chord - “Creep” by Radiohead.
• Example of major version of sixth (VI) chord - “Maxwell’s Silver Hammer” by The Beatles.
• Example of minor version of fifth (v) chord - “The Only Exception” by Paramore.
• Example of minor version of fourth (iv) chord - “No Surprises” by Radiohead.

• The video is titled “How to Identify Musical Chords by Ear - Music Lessons” and was published on August 4, 2016 by LivingPianosVideos
• The transcript of the video may have been auto-generated.
• The speaker, Robert Estrin, introduces himself as a piano teacher.
• The video addresses a viewer question about how to identify chords by ear.
• There is a reference to a previous video on how to identify different types of triads.
• There are three common triads (major, minor, and diminished)
• The diminished chord is known as the smaller chord and has a strange quality to it.
• An augmented chord is identified as having two major thirds.
• Some people have difficulty telling the difference between an augmented and diminished chord.
• Like all chord types, the sound difference is what distinguishes the augmented chord.
• The augmented chord has a large sound, while the diminished chord has a small sound.
• The outer intervals of an augmented chord suggest or imply whole tones.
• To identify the chords by ear, familiarity is necessary.
• The sound of the chords may differ depending on whether the chord is played on a piano or another instrument.
• The piano is a useful instrument for chord identification because all notes can be played simultaneously.
• The listener needs to spend time listening to and playing chords to become adept at identifying them by ear.
• The speaker plays multiple chords and invites the listener to identify them.
• The chords played are C major, C minor, C diminished, and C augmented.
• The chords have distinctively unique sounds.
• The listener can be surprised by how adept they become at identifying chords just by spending some time listening to them.
• The video urges budding musicians to spend time at the piano playing these chords to identify them by ear.
• Lastly, Robert Estrin signs off the video with a thank you.

• The video is titled “How to Identify Chords Written on Sheet Music - Lesson for Beginners” and was uploaded by Piano Lessons On The Web.
• The tutorial helps understand how to recognize chords on sheet music and how to identify the inversion and root of the chord.
• In the tutorial, the instructor explains root position, 1st inversion, and 2nd inversion triads and how the position of notes on the chord indicates what the name (root) of the chord is.
• Root position triads are evenly stacked and indicate that the root note of the chord is on the bottom.
• First inversion triads have the root note on top of the chord, and second inversion triads have the root note in the middle of the chord.
• The tutorial explains that the ability to identify chords by sight can be useful for reading sheet music and playing the piano.
• The instructor briefly talks about how to tell whether a chord is major or minor by checking the distances between the notes or playing the chord and listening for the sound.
• There is a quick test of different chords to practice identifying them based on their position and whether they are major or minor.
• The instructor also explains that chords on sheet music may be split between treble and bass clefs, and the base note that is played indicates the inversion of the chord.
• By moving notes on the chord within the same octave or different octaves, it’s possible to identify the root note of the chord and its position.
• The tutorial does not cover identifying chord progressions or analyzing complex chord structures.
• The description of the video includes links to other lessons and music courses on the instructor’s website, as well as a link to support the lessons on Patreon.

• Chord identification is explained on the piano with a focus on major, minor, augmented, and diminished chords.
• A mixture of major, minor, and diminished chords is found within any major key. Augmented chords can also be added to this list within any minor key.
• Intervals are an important part of chord identification, including the use of a root and a fifth.
• In a major chord, a major third is included above the root, while a minor third is included in a minor chord.
• Octaves are also used to distinguish chord sound and are often used to create chord progressions.
• Augmented chords have a major third but a raised or sharp fifth above the root.
• A diminished chord includes a minor third with a diminished fifth above the root.
• Triads are key to identifying chords; they consist of three notes, including a root, a third, and a fifth.
• Different combinations of the notes in a triad create different chords.
• Key signatures, time signatures, and clefs are also important in differentiating chords.
• Aural tests help with identifying chords, including the ability to hear the difference between the different chord types.
• The sound of each chord type can evoke different moods or emotions, and different kinds of chords can be used for different effects.
• Tools like lead sheets can be helpful in thinking about different kinds of chords and composing something with them.
• It’s essential to know which chords are being used in a song and how they work together to create overall music.

• The video talks about an app called Chord.Ai that can detect chord structures for any song using AI technology.
• The speaker is a musician and mentions that he often listens to the bass line and tries to work out the chords of a song.
• Programs like Studio Five can work out chord structure, but the speaker was looking for something that uses AI, is available on mobile devices, and is accurate in discerning chord progressions.
• The speaker has experience working with AI in other applications like 3D modeling and text to speech, but until he discovered Chord.Ai, there was a missing gap in the music space.
• Chord.Ai can be used to analyze chords from songs on YouTube or Spotify, but on an Android device, the user has to play the music for Spotify and let the app pick up the lyrics through the device’s microphone.
• The speaker demonstrates how to use Chord.Ai with a YouTube video link, which is analyzed once the app downloads it.
• When analyzing a song, Chord.Ai shows the user the chords in different formats such as block area and precise structure, with the option to choose a particular instrument.
• Chord.Ai uses AI to dig deeper into chord structures that might be otherwise be difficult to hear in a song due to arrangements.
• The app accurately detects chord structures for progressions where one chord is being played over another, such as an F13 over C chord that the speaker mentions.
• The speaker shows how Chord.Ai analyzes two different songs, one by Earth, Wind & Fire and another by Quinnyoner.
• The app shows the tempo of the song in beats per minute.
• The speaker emphasizes that Chord.Ai is worth the cost and is an excellent tool because it saves time otherwise spent working out chord structures and ensures accuracy.
• The speaker recommends Chord.Ai for anyone who wants to work out chord structures quickly and accurately.
• The video ends with credits to Kevin MacLeod for music and mentions that the music is licensed under a Creative Commons Attribution 4.0 license.

• Cubase features chord detection, which can tell the user what MIDI chords they are playing.
• When a user records a MIDI chord and highlights the notes in the chord editing window, Cubase will tell the user the chord name.
• Cubase allows users to change chords to major or minor chords and to move chords up and down in placement.
• Cubase includes an option to use legato, which merges all notes into the next one, making it easier for players to switch between chords.
• Users can create chord symbols in a chord track on Cubase.
• Cubase is suited for musicians who don’t know music chords or music theory.
• The product enhances workflow for composing music.
• Cubase is a DAW (digital audio workstation) made by Steinberg, a music production software company.
• Users can download a trial version of Cubase to try the software before buying.
• More information about Cubase is available on Steinberg’s website.
• The YouTube video was published by Cubase on June 17, 2021, and has 13,168 views as of the upload date.
• The video is part of a series of Cubase quick tips videos.
• The video’s stated goal is to help users detect and edit MIDI chords.
• The video explains how to use Cubase to edit MIDI chords and create chord symbols.
• The video instructs users how to add legato to MIDI chords.
• The video demonstrates how users can move chord placement up and down using Cubase.
• Users can use the chord assistant to find chords that match the chords they have played.
• Cubase allows users to edit and move MIDI chords.
• Users can use chord symbols to notate their compositions.
• Users can create choruses and verses for their compositions using Cubase.
• The video invites users to leave comments to provide feedback.

• The video provides a technique for finding the chords/notes for any song using FL Studio.
• The process involves using Edison and Wave Candy to view the frequency spectrum of the song and identify the notes and chords being played.
• The speaker mentions that this technique could be applied to any song/track, including percussion instruments and 808s.
• The video mentions a specific song used, “Charlotte Day Wilson - After All (Else Remix).”
• The speaker provides the link to his ko-fi account, asking for a donation.
• The speaker also shares a link to download a sound file and an FLP file for FL Studio.
• Edison is an audio editing and recording software, while Wave Candy is a visualization plugin that allows users to view the spectrum of the audio.
• To find the chords, users need to click on the spectrum view option in Wave Candy and adjust the scale knob so they can see all the frequencies. The speaker suggests clicking “blur behind” to show this more easily.
• The speaker also suggests clicking on 2000 bands to get a better view. Users can click “view settings” while the audio is playing to pause and look at the notes of the chord based on the lines on the spectrum view.
• The arrows on the video show what notes are currently being played. The speaker identifies F and G sharp, among other notes.
• By applying the aforementioned steps, users can visualise and verify any songs chords in FL studio to play over it later if they want to or to make their original pieces or remixes.
• The speaker’s technique is a manual process of analysing the frequency and determining the chords from the lines on the spectrum view. It may not be helpful for users who are looking for an automated way of detecting chords from audio files.

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Different techniques and algorithms used in detecting chords from audio files

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An explanation of what chords are and how they are composed from an audio file