Hi, I'm Matthias. Welcome to my website and blog!

I'm a lecturer and researcher in the field of music informatics. I currently work as a Royal Academy of Engineering Research Fellow with the Centre for Digital Music at Queen Mary, University of London (see my Queen Mary web page).

Past work places include the Internet music platform Last.fm, where I worked as Research Fellow, the Japanese research centre AIST in Tsukuba, and, as a research student, the Centre for Digital Music. Find more info on my biography page.

My main research interest (and the subject of my PhD thesis) has been the automatic transcription of chords from audio, but I've also done work on segmentation, harpsichord tuning estimation and, recently, lyrics-to-audio alignment. Please do have a look at my publications website to learn more about my work, ask Google Scholar directly, or visit my Software site if you're more interested in just using it.

from me to you »

[9 Apr 2013 | One Comment | 174 views]
For quite some time now this year’s Cozzarelli Prize winners have been announced, and I’m proudly in their midst, thanks mainly to the incredible work Bob MacCallum and Armand Leroi did on our paper on the “Evolution of Music by Public Choice“. The prize is awarded to six papers that “reflect scientific excellence and originality” and that were published in the Proceedings of the National Academy of Sciences of the USA (PNAS) the previous year. Though I’m just one little co-author, I’ll have the pleasure of flying out to Washington D.C. with Armand at the end of the month to take part in the PNAS Annual Meeting Awards Ceremony, though I expect that Armand will be on stage to actuall…

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[18 Feb 2013 | No Comment | 229 views]
http://newstalk.ie/content/001/images/000004/6482_64_pages_01_8_978x290.jpg I just had the most pleasant radio interview with Sean Moncrieff of Newstalk Radio, Dublin. From what I can tell it’s a great, interesting show in general, endorsed by the Open University. I seem to have got my point across, too: we’ve got new votes streaming in on the Descent of Pop survey just now. You can listen to the interview here. Thanks to Sean and the Newstalk team!

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[18 Feb 2013 | No Comment | 352 views]
http://upload.wikimedia.org/wikipedia/commons/thumb/c/c2/Harry_Belafonte_singing_1954.jpg/220px-Harry_Belafonte_singing_1954.jpg I thought it might be high time to remind the world of the ground truth data (zip archive here) that my colleagues at AIST and I annotated, and which accompanies my paper on vocal/instrumental solo detection. On the AIST annotation page, there are, of course, many other interesting annotations, so have a look around there, too! The ground truth is provided for the whole RWC pop corpus (100 songs).

Done and Liked, Featured, from me to you »

[5 Feb 2013 | No Comment | 519 views]
http://sphotos-d.ak.fbcdn.net/hphotos-ak-ash3/529158_202888116524019_130328987_n.jpg I’ve been involved in measuring the evolution of the charts for quite a while (at Last.fm, see the Anatomy of the Charts), and we’re opening a new chapter now. That new chapter needs your help! We want to dump those few annoying bad recordings from our database and learn about differences in audio quality in general. Everything you need to know is on this website. But the real fun happens on the rating page. It’s actually really interesting what crops up if you just randomly listen to the pop of the last 60 years, and if you do that for us, it would help us a lot. So again, your help would be appreciated on this web page. You can also befriend us on Facebook: http://www.facebook.com/DescentOfPop

Presentation »

[8 Nov 2012 | No Comment | 252 views]
http://schall-und-mauch.de/artificialmusicality/wp-content/uploads/2012/11/vortrag_mauch.png Today I had the pleasure to give a little seminar talk at the Technische Universität Dortmund. My slides are available here. In fact, I also had time to repeat my presentation of the drum pattern paper.
Both parts of the talk led to some really interesting questions from the audience. My main connections here are Igor Vatolkin, and more generally the guys in the Special Interest Group on Music Analysis (SIGMA).

Other, Publication »

[12 Okt 2012 | One Comment | 461 views]
http://schall-und-mauch.de/artificialmusicality/wp-content/uploads/2012/10/guitar.png I’m currently at the ISMIR conference in Porto, Portugal. Very nice conference — and I’m hoping to contribute to that some more by presenting Sam Myer’s “Chordroid” real-time chord detection tool, which works on Android devices. In fact, I’ve actually organised a guitar. The demonstration is going to happen this afternoon in the infamous “Maus Habitos” bar, so the atmosphere should be friendly…

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[9 Okt 2012 | No Comment | 597 views]
It was fun to present the work I did with Simon to the people at ISMIR. Some people seemed to have liked it, so thanks for that. This video is a test run of the presentation I did last night, so for those of you who weren’t there [edit: at the conference, I mean] and want to have a look, please do. Of course, I also recommend you go to the ndrum website to check out rhythm rankings more explanations, and the paper. Well, you can also have that here.

Conference Paper, Publication »

[29 Sep 2012 | No Comment | 494 views]
http://g-ec2.images-amazon.com/images/I/51R7375CSPL.jpg Something new, and, at least to me, exciting. And: it’s not about chords this time, can you believe it? Accompanying web page is here. Abstract: We present a corpus-based study of musical rhythm, based on a collection of 4.8 million bar-length drum patterns extracted from 48,176 pieces of symbolic music. Approaches to the analysis of rhythm in music information retrieval to date have focussed on low-level features for retrieval or on the detection of tempo, beats and drums in audio recordings. Musicological approaches are usually concerned with the description or implementation of manmade music theories. In this paper, we present a quantitative bottom-up approach to the study of rhythm that relies upon well-understoo…

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[10 Sep 2012 | No Comment | 453 views]
http://www.sonicscoop.com/site/wp-content/uploads/2012/06/soundcloud-logo-300x172.gif Our Songle.jp web service for interactive music analysis and annotation can now analyse and playback PIAPRO and SoundCloud content. This great new development from my old research group around Masataka Goto at AIST in Japan means that the number of interesting music tracks that are supported has multiplied. Previously the system relied on content that was stored in freely available and directly linked audio files, so in practice the content was mainly low quality … and usually also Japanese.
Now, exciting new possibilities arise, and I’ve already registered a few new songs from SoundCloud, e.g. this version of Thriller.
You can log in to Songle using OpenID, or simply use your Twitter, Yahoo, or Google account. Onc…

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[2 Aug 2012 | No Comment | 303 views]
http://www.bbc.co.uk/iplayer/images/episode/b01ljk56_640_360.jpg … or so I’m told, in a programme about DarwinTunes and other music stuff involving evolution, it’s called Darwin’s Tunes. Ah, well, it should be interesting anyway, so set your alarm clocks for next Wednesday at 9 pm (British Summer Time)!