[Haskell-cafe] Chordify, a new web startup using Haskell

Thiago Negri evohunz at gmail.com
Fri Jan 18 09:39:17 CET 2013


Is it possible to play the generated chords as a melody by itself, without
the original music over it?


2013/1/18 Alfredo Di Napoli <alfredo.dinapoli at gmail.com>

> Congratulations!
> Keep up the good work, especially in using Haskell at a commercial level :)
>
> Bye!
> Alfredo
>
>
> On 18 January 2013 07:34, Alp Mestanogullari <alpmestan at gmail.com> wrote:
>
>> That's awesome, works like a charm on the samples I've tried it on!
>> Cheers to the Chordify team, I will use it and give any useful feedback if
>> I have any.
>>
>>
>> On Fri, Jan 18, 2013 at 12:07 AM, José Pedro Magalhães <jpm at cs.uu.nl>wrote:
>>
>>>  Hi all,
>>>
>>> I'd like to introduce Chordify <http://chordify.net/> [1], an online
>>> music player that extracts chords from musical sources like Soundcloud,
>>> Youtube or your own files, and shows you which chord to play when. Here's
>>> an example song:
>>> http://chordify.net/chords/passenger-let-her-go-official-video-passengermusic
>>>
>>> The aim of Chordify is to make state-of-the-art music technology
>>> accessible to a broader audience. Behind the scenes, Chordify uses the
>>> HarmTrace Haskell package to compute chords from audio. I've been working
>>> on this project with a couple of colleagues for a while now, and recently
>>> we have made the website public, free to use for everyone.
>>>
>>> We do not use Haskell for any of the frontend/user interface, but the
>>> backend is entirely written in Haskell (and it uses pretty advanced
>>> features, such as GADTs and type families [3]). We're particularly
>>> interested in user feedback at this stage, so if you're interested in music
>>> and could use an automatic chord transcription service, please try Chordify!
>>>
>>>
>>> Cheers,
>>> Pedro
>>>
>>> [1] http://chordify.net/
>>> [2] http://hackage.haskell.org/package/HarmTrace
>>> [3] José Pedro Magalhães and W. Bas de Haas. Functional Modelling of
>>> Musical Harmony: an Experience Report. In Proceedings of the 16th ACM
>>> SIGPLAN International Conference on Functional Programming (ICFP'11), pp.
>>> 156–162, ACM, 2011. http://dreixel.net/research/pdf/fmmh.pdf
>>>
>>>
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>>>
>>>
>>
>>
>> --
>> Alp Mestanogullari
>>
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>
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