[Smt-talk] RN analyzers

Fri Feb 24 14:23:40 PST 2012

I would be interested to hear what are the proposed goals of the
development of such software, beyond the obvious technical challenges posed
to developers. What would be the ultimate utility of software which could
mimic conventional human translation of music-notational data to
roman-numeric functional analysis?

Best,

Christian

--
Christian Goursaud
PhD candidate, Birmingham Conservatoire
+44 (0)7796033585
christian.goursaud at gmail.com
 On 24 Feb 2012 20:14, "Michael Scott Cuthbert" <cuthbert at mit.edu> wrote:

> Dear Dmitri and List,
>
> As far as I know, there really aren't any other computer roman numeral
> analyses that can run on the "messy" data of piano sonatas, string
> quartets,
> etc. so your student's work is probably the set "standard" now for beating.
>
> For those who aren't aware of it, music21 (http://mit.edu/music21/) is an
> open source set of python tools for computational music theory and
> musicology that works with a variety of formats (musicxml, midi, humdrum,
> musedata, etc. and both Dmitri and the Temperly/de Clercq roman numeral
> formats) to simplify many aspects of computer-aided musical analysis.  The
> toolkit includes graphical plotting libraries, key analyses (Krumhansl
> probe-tone among others), beat strength analyses, "chordify" (salami
> vertical slicing of a score), etc.  The project is very open to
> contributions by others and I hope that as other people come up with good
> algorithms for performing central tasks that they will be willing to
> contribute back their code for others to use on their data (Dmitri --
> contact me off list about integrating any speed ups; if they're general
> purpose and don't slow down other types of analysis, we'll gladly include
> them).
>
> Best,
> Michael
>
> ---                                             ---
> Michael Scott Cuthbert
>    Associate Professor of Music
>   Homer A. Burnell Career Development Professor, M.I.T.
>
> 4-246 Music and Theater Arts                +1-413-575-6024
> 77 Massachusetts Ave.                        cuthbert at mit.edu
> Cambridge, MA 02139                 http://www.trecento.com
>
>
>
> -----Original Message-----
> From: Dmitri Tymoczko [mailto:dmitri at princeton.edu]
> Sent: Wednesday, February 22, 2012 21:23
> To: Kris Shaffer
> Cc: smt smt-talk; Michael Scott Cuthbert
> Subject: Re: [Smt-talk] RN analyzers
>
> Hi Kris,
>
> Yes, we're definitely using Music21, but building on top of it.  (I think
> my
> guy had to rewrite some of the Music21 code to get it to run faster; Myke,
> do you want to include his work when he's done?)  Our goal is to get
> something that is as close to a human analysis as possible -- including
> modulations, applied chords, passing tones, implied notes, and so on. The
> whole freshman-theory shebang.  My understanding is that Music21 isn't
> really at that level yet.
>
> We've got my big corpora of sonata analyses, so we can use that to "score"
> the program.  What I'm wondering is what else is out there -- so we can
> know
> how far we have to go before our program is as good as, or even better,
> than
> the other programs that are out there.
>
> In any case, I'm certain that our program is better than Music21 raw, since
> that's where we started ...
>
> DT
>
>
>
> On Feb 22, 2012, at 9:09 PM, Kris Shaffer wrote:
>
> > Dmitri,
> > Have you looked at music21? (mit.edu/music21) Once the music21
> > framework is installed, the following python script takes a Mozart
> > quartet movement (in musicXML format) from the included corpus,
> > converts it to a series of salami-slice chords, and returns both Roman
> > numeral and common chord name for each new verticality. (Obviously, it
> > can be augmented to include timing information, etc.)
> >
> > from music21 import stream
> > from music21 import chord
> > from music21 import key
> > from music21 import roman
> > from music21 import corpus
> > piece = corpus.parse('mozart/k155/movement1.xml')
> > k = key.Key('d')
> > reduction = piece.chordify()
> > for c in reduction.flat.getElementsByClass('Chord'):
> >       print roman.fromChordAndKey(c,k), c
> >
> > Combine with elements from the first example here:
> >
> > http://mit.edu/music21/doc/html/examples.html#examples
> >
> > and you can put the analysis directly on a score.
> >
> > Myke Cuthbert, PI for music21, has told me that he has a team of students
> working on an improved counterpoint module that will detect passing tones,
> neighbor tones, and the like, with the goal of doing automated harmonic
> reduction. Depending on what your student has done, that also may make
> helpful comparison once it is released.
> >
> > Kris Shaffer, Ph.D.
> > Assistant Professor of Music Theory
> > Charleston Southern University
> > http://kris.shaffermusic.com
> > twitter: @krisshaffer
> >
> >
> > On Feb 22, 2012, at 9:19 AM, Dmitri Tymoczko wrote:
> >
> >> Are there any computer programs out there capable of inputting a generic
> XML score of a classical-style keyboard piece (or string quartet or what
> have you) and outputting a Roman numeral analysis?
> >>
> >> I ask because I have a student who is built one, and we're looking to
> test its accuracy against the best things out there.
> >>
> >> Thanks,
> >> DT
> >>
> >> Dmitri Tymoczko
> >> Associate Professor of Music
> >> 310 Woolworth Center
> >> Princeton, NJ 08544-1007
> >> (609) 258-4255 (ph), (609) 258-6793 (fax) http://dmitri.tymoczko.com
> >>
> >>
> >>
> >>
> >>
> >>
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> >>
> >
>
> Dmitri Tymoczko
> Associate Professor of Music
> 310 Woolworth Center
> Princeton, NJ 08544-1007
> (609) 258-4255 (ph), (609) 258-6793 (fax) http://dmitri.tymoczko.com
>
>
>
>
>
>
>
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