So, what do I do with all these samples of different mallets on piano strings, and other areas of the instrument? How about putting them all into a drum machine? Better yet, a virtual drum machine, like Ableton’s Impulse. In this example I have selected some percussive sounds as well as some tonal samples and tuned everything to work together, then created a simple beat with the samples. Key parameters in setting up Impulse included, pitch, decay, filter, frequency, resonance and mode.
Piano Mallet Beat
Here’s another example of using a mallet to get sounds out of my piano. In this case, instead of striking the main part of the string, I let the mallet bounce on the small piece of string after the bridge. This part of the piano is traditionally not used to create sound and the pitches are quite high and not tuned, similar to the area between the tuning pegs and the nut of a guitar. 
This dissonant phrase of piano was created by using a metal mallet to gently taps the stings on the piano in the upper register. I’ve been experimenting with getting some unique sounds out of my piano by not using the keyboard. 
I always liked the sound this old spring door stop makes when accidentally kicked, but never recorded it until now. I think the fact that its attached to a one hundred two year old wooden door gives is some nice resonance. 