From: Evan Hanson <vnhnsn@...>
Date: 2010-03-02T02:39:13+09:00
Subject: Re: [QUIZ] Music Theory (#229)

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So, this is my first post to the list, my solution to 229. I'm still gettin=
g the
hang of Ruby, so any tips you might have are more than welcome. My script
probably doesn't have the most extensive chord dictionary, but I designed i=
t
so that it'd be easy to add new definitions.

Anyway, it was fun. Ruby is great. Actually, one of the toughest parts abou=
t
this problem was deciding what degrees of the chord are implied by a given
symbol. I'm a jazz musician, and we just play whatever the hell we want, so=
 I
wasn't sure on the specifics of a few of them.

Again, suggestions are welcome.

-- Evan


On Fri, Feb 26, 2010 at 11:36 AM, Daniel Moore <yahivin@gmail.com> wrote:
> -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=
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>
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>
> ## Music Theory (#229)
>
> Do-Re-Me Rubyists,
>
> I have a musician friend, let's call him Steve. Steve wants to be a
> legendary guitarist. He practices every day, learning new chords and
> techniques. But he has a problem.
>
> Steve bought all the books, but it's too much trouble to flip through
> them when he's practicing. He tried all sorts of ways to solve this
> problem: adhesive notes that adhered to everything, big music stands
> that kept getting knocked over, websites with loud and annoying video
> advertisements... everything. He even tried enlisting the help of his
> trusty cat, Pajamas, to turn the pages, yet nothing worked.
>
> He's trying to learn Amaj7 so he can be cool like his hero, Herman Li,
> but Pajamas clawed out that part of his book. Steve is programmer, so
> he knows that when solving a problem it should be solved once and
> forever. Steve wants to write a program where someone can type in
> Amaj7 and see the notes that comprise the chord. Not only Amaj7 but
> Dsus2 as well. In fact, any chord at all.
>
> Steve, because he is a proper programmer, is lazy. He came to me and
> asked if I could send this out on the "weekly" Ruby Quiz. Anything to
> help a friend!
>
> Your task is to create a program that will accept strings like: Amaj7,
> Dsus2, Aminor, C, C9, G#dim, Ebadd9, etc. The output will be the notes
> that make up the chord, for example
>
> Cmajor =3D> C E G
> Ebdim7 =3D> Eb Gb A C
>
> Have fun! And thanks for helping Steve out!
>
> --
> -Daniel
> http://rubyquiz.strd6.com
>
>

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