 Alternatively, composers such as La Monte Young, Ben Johnston, James Tenney, Marc Sabat, Wolfgang von Schweinitz, and Catherine Lamb have sought a new kind tonality and harmony – one based on the perception and experience of sound, which not only allows for the more familiar consonant structures, but also extends them beyond the 5-limit into a nuanced and diverse network of relationships between tones.Yuri Landman devised a just intonation musical scale from an atonal prepared guitar playing technique based on adding a third bridge under the strings.When this bridge is positioned at nodal positions of the guitar strings' harmonic series, the volume of the instrument increases and the overtone becomes clear, having a consonant relation to the complementary opposed string part creating a harmonic multiphonic tone.