Un extracto de: http://www.soundonsound.com/sos/sep98/articles/mariusdevries.html
Marius de Vries hablando de su trabajo con Madonna
Finally, the fact that de Vries doesn't rely only on samples to create rhythm magic is demonstrated by his work on Madonna's Ray Of Light album, especially on the track 'Little Star' on which -- with rhythm programmer Steve Sidelnyk -- he did some masterful drum and keyboard programming. He was called in to the project at a late stage, when William Orbit and Madonna had already finished much of the album, and ended up co-producing 'Skin' and 'Nothing Really Matters' with Madonna and Orbit, and 'Little Star' with Madonna. He also did some additional programming on 'Frozen' at a point when Orbit and Madonna weren't quite clear how to finish that track and wanted some new energy and input.
De Vries: "I had to be very sensitive with what I did, because the aesthetic of the album was already well established by William and Madonna. So I had to work within a well-defined framework. 'Nothing Really Matters' was almost like an older-style Madonna tune, and my work was to help keep the appeal of something that she might have done five years ago, and at the same time updating it and keeping it in sympathy with the stuff William had been doing. I did most of the handiwork on that track, though William was there with his ears and suggestions. 'Skin' was really a true multi-programmer situation, with both of us having our rigs in the studio and battling it out. The biggest challenge was 'Little Star' because it was a song that could easily have become sentimental. I wanted to keep the delicacy of the track above everything, but I also knew that it needed some energy for it not to be too fey. So what I decided to do was to create a fairly energetic double-time drum arrangement, but using very soft sounds. There were no loops on that track, instead Steve and I programmed everything by hand, using jazz brushes and brushed ride cymbals, ie. softly hit things, so that the whole track would have this gossamer, fluttery energy running through it. It was a fine balance. Whenever it got too heavy, it sounded like the track was weighed down by overproduction, and whenever it was too light, it just sounded sentimental. I orchestrated that track mainly with noises rather than keyboards, chasing the idea of things drifting in and out of focus to achieve a dreamy quality. I actually used a lot of the Waldorf Wave on the Madonna tracks. I borrowed one from Björk, and spent a couple of days generating hundreds of sounds which I fed into a sampler, and used one way or another for the backdrop for the songs."