======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '175'
                                          'artist'  'POLYSICS'
                                     'text_people'  ''
                                         'release'  'Rocket'
                                           'title'  'Rocket (Karaoke)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['new wave', 'rock', 'electronic', 'japanese', 'j rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  ('loc-asia-japan;rock-gr-punk-jpunk;loc-asia-japan-jpunk;loc-asia-japan-jrock;electronic-we-new '
 'wave or post punk')
                                             'bpm'  '136.8'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Rocket'
'TBPM' (BPM (beats per minute))                     '136.8'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan',
 'rock-gr-punk-jpunk',
 'loc-asia-japan-jpunk',
 'loc-asia-japan-jrock',
 'electronic-we-new wave or post punk']
'TDOR' (Original release time)                      '2007'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'Rocket (Karaoke)'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'POLYSICS'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['new wave', 'rock', 'electronic', 'japanese', 'j rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.28 dB'
'TXXX:replaygain_track_peak'                        '0.310586'

========================== row from database ==========================
                                              'id'  925519
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/POLYSICS/もやしもん ED - Rocket／POLYSICS/POLYSICS - Rocket - 03 - Rocket (Karaoke).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  175
                                           'genre'  loc-asia-japan;rock-gr-punk-jpunk;loc-asia-japan-jpunk;loc-asia-japan-jrock;electronic-we-new wave or post punk
                                        'filesize'  7009435
                                           'mtime'  1637019974
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia もやしもん ED Rocket／POLYSICS 03 loc asia japan;rock gr punk jpunk;loc asia japan jpunk;loc asia japan jrock;electronic we new wave or post punk
                                      'tag_artist'  POLYSICS
                                     'tag_release'  Rocket
                                       'tag_title'  Rocket (Karaoke)
                                             'bpm'  136.8
                                    'search_title'  'karaoke':2,3 'rocket':1
                                   'search_artist'  'polysics':1
                                  'search_release'  'rocket':1
                                     'search_rest'  '00asia':1 'asia':11 'ed':4 'electronic':24,26 'gr':16 'japan':12,14,22 'jpunk':18,20 'jrock':23,25 'loc':10,19,21 'moyasimon':3 'new':28 'or':30 'polysics':6,8 'post':31 'punk':17 'rock':13,15 'rocket':5,7 'rocketpolysics':9 'wave':29 'we':27 'もやしもん':2
                                    'search_combo'  '00asia':6 'asia':16 'ed':9 'electronic':29,31 'gr':21 'japan':17,19,27 'jpunk':23,25 'jrock':28,30 'karaoke':2A,3A 'loc':15,24,26 'moyasimon':8 'new':33 'or':35 'polysics':4B,11,13 'post':36 'punk':22 'rock':18,20 'rocket':1A,5C,10,12 'rocketpolysics':14 'wave':34 'we':32 'もやしもん':7
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['new wave', 'rock', 'electronic', 'japanese', 'j rock']
                                        'tag_date'  2007
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637019973.8236778  (2021-11-16 00:46:13)
                             'size'  7009435