music plus one

December 30, 2007 at 08:21 PM · does anyone have recent information on the availability of Raphael's Music Plus One accompaniment program ?

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December 31, 2007 at 03:03 AM · Just for the record - that's not me. But it sounds interesting!

December 31, 2007 at 01:16 PM · Isn't that Music Minus One, or is this something different?? Sue

December 31, 2007 at 03:07 PM · Informatics Philharmonic: Beethoven, Sibelius and Music Plus One

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February 19, 2007

BLOOMINGTON, Ind. -- Begin with violinists. Then, bring in a computerized musical accompaniment program. It all adds up to a unique blend of classical music.

Christopher Raphael

Print-Quality Photo

Christopher Raphael, associate professor at the Indiana University School of Informatics, will share center stage with Mimi Zweig, professor at the Jacobs School of Music. They're appearing together in Informatics Philharmonic at 3 p.m., Saturday (Feb. 24) at the Sweeney Lecture Hall in the Simon Music Center.

Raphael is the creator of Music Plus One, a sophisticated computerized instrumental accompaniment program that responds in real time to a soloist's tempo changes and other expressive gestures. The accompaniment is drawn from recorded past rehearsals from, say, a concerto or sonata. As the musician plays, the accompanying music is synthesized through an audio recording.

Mimi Zweig

Print-Quality Photo

Zweig teaches violin, string pedagogy and heads the IU String Academy. She's also a former member of the American Symphony Orchestra, Syracuse Orchestra, Piedmont Chamber Orchestra and the Indianapolis Symphony Orchestra.

The concert features Yoo-jin Cho and Thomas Rodgers, who will play movements from the violin concertos of Ludwig Van Beethoven and Jan Sibelius. They will be accompanied by Raphael's Music Plus One "orchestra." Raphael, who once played for the Santa Cruz (California) Symphony, also will perform on the oboe.

MPO makes advances on a long-time popular training record called Music Minus One where a student plays a missing solo part with the recording supplying the instrumental accompaniment.

"MPO adds to a soloist's experience by providing a responsive and nuanced accompaniment rather than subtracting from it by imposing a rigid framework that stifles musical expression," said Raphael.

"I believe these accompaniment systems will someday be as commonplace in the musician's toolbox as the metronome and tuner -- but much more appreciated," said Raphael.

Raphael is the subject of a 30-minute profile and will demonstrate Music Plus One at 8 p.m. Thursday (Feb. 22) on WTIU, IU Bloomington's public television station.

To listen to sampled audio records of Music Plus One, go to

Informatics Philharmonic is part of ArtsWeek 2007, the annual IU-Bloomington celebration of the arts, Feb. 21-March 3.

December 31, 2007 at 03:11 PM · I can't find where it's available. I think it's great, but where does one get it?

Is it available??

January 3, 2008 at 05:21 AM · Music Plus One is not available for purchase yet. You could contact the School of Informatics at Indiana University to learn more about it.

January 3, 2008 at 02:06 PM · Thanks, Karel. Have you tried it?

November 15, 2011 at 09:54 PM · It seems to be available now. See

November 17, 2011 at 03:09 AM · Just to clarify, you can try Music Plus One at . Violinists can download the Beethoven 2nd Romance for free.

I hope you enjoy it and really appreciate any feedback!

Christopher Raphael

(Music+One creator)

May 10, 2012 at 08:29 PM · So I downloaded the MPO program and tried it out -- and it works! No matter how exaggerated or just unmusical my rubato, it will pick me up again. And that Beethoven romance is not so easy at all, but that's no fault of MPO.


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