Fine-Grained Categories of heartbeat:

• involuntary:movement,
• conscious:control,
• voluntary:control,
• regular:event,
• internal:control,
• physical:quantity,
• physiological:event,
• soft:sound,
• repetitive:sound,
• voluntary:movement,
• biological:cycle,
• periodic:movement,
• physiological:sound,
• biological:event,
• physiological:movement,
• physiologic:motion,
• involuntary:motion,
• autonomic:change,
• regular:cycle,
• rhythmic:motion,
• rhythmic:movement,
• graphical:form,
• physiological:motion,
• physical:modification,
• involuntary:control,
• internal:motion,
• rhythmic:sound,
• muscular:movement,
• autonomic:control,
• natural:motion,
• voluntary:motion,
• internal:state,
• autonomic:movement,
• physical:trait,
• complex:event,
• public:thing,
• extra:sound,
• internal:sound,
• automatic:movement,
• continuous:sound,
• vocal:group,
• physical:cycle,
• periodic:motion,

Poetic Qualities of heartbeat:

• rhythmical:pulse,
• rhythmical:pulsation,
• booming:thunder,
• rhythmic:pulse,
• painful:throb,
• rhythmic:pulsation,
• droning:throb,
• stellar:pulsation,
• clocklike:regularity,
• flashing:pulse,
• rhythmic:throb,
• beating:pulse,
• robotic:consistency,