To tune the tree I picked a fundamental note and tuned the twigs by trimming them with a pencil sharpener. I used two Røde NT6 and a NTG-2 as microphones, combined with a customized stethoscope.
I recorded the tracks live on a Pro Tools LE system. I didn’t use any synthesizer or sampler to create or modify the sounds. All the sounds come from playing the tree, by bowing the twigs, shaking the leaves, playing rhythms on the cortex and so on.
At this link you can see some pictures with more detailed descriptions: behance.net/Gallery/Music-from-a-Tree/263872