• Category: Music
  • Release Date:
  • Current Version: 1.0.2
  • Adult Rating: 4+
  • Developer: Xiao Yixiang
  • Compatibility: Android
53 Ratings
$ 2.99

Chordec App

Chordec does chord recognition for songs from your iOS device. It was originally developed by Weibin Shen and is now re-released. Its algorithm has the highest accuracy among published algorithms till at least the end of 2012. Chord recognition accuracy under default Sensitivity value: 82% if counting only major and minor chords, 65% if counting only maj, min, aug, dim, 7, maj7 and min7 Chordec features a Sensitivity slider. It can change the sensitivity of the chord recognition model. Although the default value of this slider can return meaningful chord estimation results for majorities of the music out there, for some music, tweaking this value may return a better chord recognition result. Special Thanks To: Georgia Tech Center for Music Technology (GTCMT) International Society for Music Information Retrieval (ISMIR)


Chordec app screenshots

Chordec app reviews

  • Dont work on ios 11!!!! 1/5

    By ohh hell no
    When is the new update going to be available i paid for it and now cant use it please fix
  • we need update to IOS11 4/5

    By Gerber0319
    we need update to IOS11
  • Update please 1/5

    By Jpitsme
    Please update the app so it works with IOS 11
  • Updates 2/5

    By iWealthy
    Will there be any updates? Maybe some chord extension like 7#5#9, or dim7 or 7b9 etc... since iOS has changed will there be any updates??
  • Holy Crap 5/5

    By Saltwater cowboy 70
    It's soooooo worth it !!!
  • Doesn't work with Apple Music 1/5

    By Matt_M
    This won't load any of my songs that I have downloaded from Apple Music.
  • Doesn't load songs 1/5

    By Naysin
    I want my money back, all my music is downloaded to my Icould and it still doesn't load the song. Disappointed, I want my money back
  • so useful 4/5

    By jadekmmmny
    only used on 1 song so far, but chord analysis was pretty on point and the ability to slow down or speed up is just awesome. easy, intuitive interface design. one thing i do miss is the ability to change the key of an analyzed song. other than that, i'm super pleased with my purchase ! x
  • Great app. Txt Dv 5/5

    By JIA74
    Xiao. Thank you. Watched demo on YouTube. Could see your passion for coding and as a musician. I have found it very helpful. thank you!!
  • Amazing! 5/5

    By Rsherota
    I couldn't believe how well this app works! I had low expectations before purchasing but now I'm glad I bought it. Well worth the money.
  • I wouldn't recommend this 1/5

    By LocoMocoKr
    Worked only for the first few weeks then nothing seems to work all of sudden. Very upset that we actually have to pay for this app.
  • Indispensable! 5/5

    By KwirkyKaos
    Chordec is a phenomenal teaching aid. You can slow it down while retaining the pitch and play long with any song. One should always use their ears when using this App. Chordec is a game changer with it's intuitive design and functionality.
  • Good potential but doest work with Apple music 2/5

    By arkyn
    It should have state clearly they dont work with apple music
  • Very useful 4/5

    By I mad bro!.!
    No glitches just that I wish it could translate lead but other than that it's is great.
  • It doesn't work! 1/5

    By SuperPieruccio
    Does not load, it says song on iCloud or DRM encrypted ... (?). What am I supposed to do? Any suggestion to the several with the same problem?
  • Fantastic App well worth the $$ 5/5

    By rossasaurus
    Been struggling with a song and getting frustrated with tuner sensitivity and trying to divine the chords that way. This App does it gracefully and fast, and lets you adjust playback speed to boot. Love it, thank you a thousand times!
  • Won't Load Songs! 1/5

    By Maracas4You
    Keep getting DRM encryption error on my purchased iTunes music making this app useless, wish I could get my money back definitely sticking with Capo Touch instead. Please fix or refund my $$.
  • Awesome - needs to transpose chords though 5/5

    By North end commuter
    Works well, but please build in a setting to show the chords in different keys. I'm a sax player so I use Bb and Eb instead of the key of C. Seems doable if you've been genius enough to create this masterpiece as it already is! Please!
  • Musician 4/5

    By Acoustic musician
    Very nice app! I had a song I just could NOT figure out and this app helped me. I just wish it had a transpose option. Love it!
  • Works! 5/5

    By AmyB8484
    Works very well. I wish there was some kind of export feature, like to export a list of the chords, but I still give it 5 stars.
  • Does not work! 1/5

    By It's a rip-off!
    For every song in my library it says it is either DRM encrypted or must be downloaded. If it needs to be downloaded what's stopping it? These items are not DRM encoded. At the very least it needs to explain how to download the music that's already available to all the other apps. How can I get my money back?

    By Joziey
    I can't believe there's so many good reviews for this app! It's extremely inaccurate and tries to pass off as some state of the art gadget when in reality your better off just Googling the chords/tabs.
  • It Works! 5/5

    By VicSmith
    I was a sceptic, but my initial experience has been completely satisfactory. A couple of nice to haves would include: the ability to "listen" to a song like Shazam does in addition to using MP3 files; and the ability to show chords transposed for Bb and Eb instruments.
  • Awesome app for gigs 5/5

    By tino_bandito
    Used this to write quick chord charts for gigs and it's way easier than playing around on the keys to figure them out. Highly recommended!
  • Excellent 5/5

    By AhmedAhmadi
    App is really good , please update it to support iphone 6 and 6 plus resolution
  • It works! It works! 5/5

    By Jaxziel
    Wow!!! what a great app and musicians tool. Just tried it out and it works great for my level of talent. I see my musical skills improving ,can't thank you enough...
  • Amazing 5/5

    By JayMenardd
    I never have to rely on an online video again if I can't figure out a chord. This app should be more popular! I'll definitely tell my friends!
  • Awesome app and works great!! 5/5

    By Music man!!!
    I never give reviews on apps but if you need to get chords to a song you can't figure out please use this app and it's free!!! Let's support this guy by posting great reviews!!!!
  • Marvelous 5/5

    By JPzl78
    This is a must have app for anybody who's yearning to know how to play his/her fav song. The display toggle shows the actual chord (on the piano). The app would top it off if it had a guitar display as well. Hopefully the designers will add this feature....Still, I give it a five star! Extremely accurate.
  • Magnificent! 5/5

    By Harleyder
    How in the world an app could make my life so easy, playing the chords just on the spot. Love it!
  • Piano fingerings and chord names! 5/5

    By hansendesigns.
    Great app! As it plays the song it shows you chord names, piano fingerings and the waveform with chords inserted. It allows for levels of chord detection sensitivity and tape speed. Awesome
  • Excellent 5/5

    By el mejor musico
    Wow It work very good it's a excellent app it's a really good app thanks
  • Excellent 5/5

    By ThE-iTCH
    Works exactly as promised. Now all I need is a an OS X and ipad version!
  • Very impressed 5/5

    By DMM1979
    Tried it on several songs (mainly acoustic) and it worked wonderfully. Exactly what I was looking for! Also tested it on a few songs where I already knew the chords and the app was spot on.
  • Nice app 4/5

    By bburt85
    I like this app, it is well put together. I was hoping that there was a live mic option so that I could also use this when playing with other people or if I am listening to a song not on my phone.
  • It works! 5/5

    By Map2mark
    Wow. Just wow. Exactly what I was looking for.
  • Great 5/5

    By Lauvargas
    It works for me I play the piano and it actually shows the cords, you can slow down or fasten the song. I love it!
  • Works 5/5

    By David l kircos
    Works really well for songs where the chords are cleanly played.

Chordec app comments


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