'emotion-arousing_/_awakening'
    'not-emotion-arousing_/_awakening'
    'not-emotion-bizarre_/_weird'
    'emotion-calming_/_soothing'
    'emotion-carefree_/_lighthearted'
    'not-emotion-carefree_/_lighthearted'
    'emotion-cheerful_/_festive'
    'not-emotion-cheerful_/_festive'
    'emotion-emotional_/_passionate'
    'not-emotion-emotional_/_passionate'
    'emotion-exciting_/_thrilling'
    'emotion-happy'
    'emotion-laid-back_/_mellow'
    'not-emotion-laid-back_/_mellow'
    'emotion-light_/_playful'
    'not-emotion-light_/_playful'
    'emotion-loving_/_romantic'
    'not-emotion-loving_/_romantic'
    'emotion-pleasant_/_comfortable'
    'not-emotion-pleasant_/_comfortable'
    'emotion-positive_/_optimistic'
    'not-emotion-positive_/_optimistic'
    'emotion-powerful_/_strong'
    'not-emotion-powerful_/_strong'
    'emotion-sad'
    'emotion-tender_/_soft'
    'not-emotion-tender_/_soft'
    'emotion-touching_/_loving'
    'genre--_alternative'
    'genre--_classic_rock'
    'genre-electronica'
    'genre-pop'
    'genre-rock'
    'instrument_-_acoustic_guitar'
    'instrument_-_backing_vocals'
    'instrument_-_bass'
    'instrument_-_drum_set'
    'instrument_-_electric_guitar_(clean)'
    'instrument_-_electric_guitar_(distorted)'
    'instrument_-_female_lead_vocals'
    'instrument_-_male_lead_vocals'
    'instrument_-_piano'
    'instrument_-_synthesizer'
    'song-catchy/memorable'
    'not-song-catchy/memorable'
    'not-song-changing_energy_level'
    'song-fast_tempo'
    'not-song-fast_tempo'
    'song-heavy_beat'
    'not-song-heavy_beat'
    'song-high_energy'
    'not-song-high_energy'
    'song-texture_acoustic'
    'song-texture_electric'
    'song-texture_synthesized'
    'song-tonality'
    'song-very_danceable'
    'not-song-very_danceable'
    'usage-at_a_party'
    'vocals-emotional'
    'vocals-strong'