I had previously written about my Bass Piano experiment that is underway, which you can read about here. In this first round I tuned the piano down a 5th. The next phase was to tune the same piano down a full octave. I did a rough recording of an improvised tune on this 8vb Bass Piano at the Shatford Centre a little while ago. The dramatic change in tension in the strings creates a very different timbre than a normal piano. To me it sound more like a steal drum or bells, the metallic character of the strings really comes through. Plus, lots of strange harmonics, buzzing and bizarre sounds start happening.