From LSWiki

Heartstrings

Knowledge Requirement

have at least 130 points among musical composition skill, 25% of empathy skill and 25% of introspection skill

Actualization Requirement

have at least 375 points among telesma skill, 25% of musical composition skill and 50% of vocalization skill

Facility Formula

25% of charisma plus 45% of telesma skill plus 20% of vocalization skill plus 10% of leximancy skill plus 10% of introspection skill, with diminishing returns on a scaling factor of three

Energy Costs

fifty points of order energy

Process to Actualize Form

subvocalize a melody consisting of an axially centered circle of fifths

Music is particularly well suited to capture raw emotion, and is thus the basis for the Aligned to actualize this form and open and maintain the svadhisthana chakra. The tune is not complex, but understanding its significance requires a certain degree of music-theoretical sophistication: the tune is a sort of map of possible pitches, each of which serves as an anchor for a magickal link to one's emotional life.