An interview of John Adams

John Adams who is a prominent minimalist composer states music composer are not considered as a career. Minimal music repeats a bar for 2 or 3 mins. If one note went wrong or its too loud, then the audiences have to listen that error for 2 or 3 minutes as well. It seems that minimal music is easier than other genres of music, but the persist of the structure make it rather difficult to fix during the rehearsal or actual performance 

Computer Blog Intime by Patrick Dorobisz

Contemporary music

Contemporary music need to listen consciously, with understanding of its background and existence. "The idea of minimalism is much larger than most people realize. It includes, by definition, any music that works with limited or minimal materials: pieces that use only a few notes, pieces that use only a few words of text, or pieces written for very limited instruments, such as antique cymbals, bicycle wheels, or whiskey glasses. It includes pieces that sustain one basic electronic rumble for a long time. It includes pieces made exclusively from recordings of rivers and streams. It includes pieces that move in endless circles. It includes pieces that set up an unmoving wall of saxophone sound. It includes pieces that take a very long time to move gradually from one kind of music to another kind. It includes pieces that permit all possible pitches, as long as they fall between C and D. It includes pieces that slow the tempo down to two or three notes per minute."

Drone music performance

Pitch disabled

With a few pitch disabled switch, the keyboard now turns into a instrument that only differentiate how many key are pressed at the same time. The keyboard now inverses that switches generate tones, the actual keyboard modifying the sound.

performance with circuit bending instrument

What is Circuit Bending