The Tree Charter Bell is used as a focus for ceremonies around tree planting activities in connection with The Woodland Trust. Locke worked with John Taylor Bells in Loughborough to cast a large tower bell tuned to the frequency of The Original Bramley Apple Tree in Southwell. The bell resonates at 500HZ when the temperature is 21 degrees, when the temperature changes so too does the resonance of the bell. In many cultures, the bell has significance. For example: in the UK bells are used to call people together and also as a warning sign. Using this idea as a trigger and as part of the growing body of research, Locke explores situations in view of socially engaged practice, bringing groups of people together in order to consider relationshi...