Advice for performers
Below you can find the video demonstration of the techniques and sounds used in the piece. The video is pretty old by now (I used extracts from the videos I was making while composing) but you can still see and hear everything. In the video, I work with big concert grand pianos (Steinway D), that is why I use both magnets, a rectangular and a round one for the preparation. In the premiere performance by Nikel ensemble listed above, we had to play on Steinway B; because of the different position of the metal bars inside the piano, we changed the pitches of the prepared strings (d4 instead of e3 and b3 instead of d3 – where middle C is C4) and also we used only rectangular magnets for the preparation as for that size of the piano it was enough to evoke rhythmical beatings.
A frequent question concerns the pitches of opera gongs (in the video demonstration you can hear them at the very end) and a Sansula. It is important to have those exact pitches in those precise octaves for gongs, there is a relation between them and most importantly, I like the sound of those particular gongs at that height, I chose them. There are some performances on Youtube, where musicians use other gongs with and without my permission, I strongly prefer the original sounds. As for Sansula, it is essential to use Sansula and not a kalimba. Sansula has an open resonator that allows a wah-wah effect, which corresponds to wah-wah tubes, glissandi of opera gongs and glissandi on the strings with a guitar slide. Together, they constitute one family of sounds. Without one of those elements, the connection between the sounds will be lost.
Instead of the face massager you can use a vibrator or any other vibrating object. I would prefer if you attach it to the inner side of the bass drum, hidden from the audience, for the source of sound to stay implicit.
You can buy neodymium magnets online (for instance, in Russia I recommend this shop: https://mirmagnitov.ru/ , in Europe: https://www.supermagnete.de/eng/ ). The size of neodymium magnets is crucial. The size of the ferrite magnet can vary, it is important that it is convenient to hold it – not too big, not too small.
For other objects and links, please, check the technical rider below. For any additional questions, please, contact me by email.
On the photo above: Ensemble NEOPERCUSIÓN
On the photo above: ensemble No Hay Banda
A video with the score (performance by Nikel ensemble):