======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '176'
                                          'artist'  'Bouncing Souls'
                                     'text_people'  ''
                                         'release'  'Punk-O-Rama Tour 2000'
                                           'title'  'K8 is Great'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['punk rock', 'punk', 'pop punk', 'rock', 'hardcore']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '117.671'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Punk-O-Rama Tour 2000'
'TBPM' (BPM (beats per minute))                     '117.671'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'K8 is Great'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Bouncing Souls'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['punk rock', 'punk', 'pop punk', 'rock', 'hardcore']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.90 dB'
'TXXX:replaygain_track_peak'                        '0.678474'

========================== row from database ==========================
                                              'id'  1341659
                                            'path'  /data/Music/Bulk/00poprockelectronic/Bouncing Souls/Punk-O-Rama Tour 2000/Bouncing Souls - K8 is Great.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  176
                                           'genre'  rock-gr-punk
                                        'filesize'  4237917
                                           'mtime'  1622659275
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic rock gr punk
                                      'tag_artist'  Bouncing Souls
                                     'tag_release'  Punk-O-Rama Tour 2000
                                       'tag_title'  K8 is Great
                                             'bpm'  117.671
                                    'search_title'  'great':3 'is':2 'k8':1
                                   'search_artist'  'bouncing':1 'souls':2
                                  'search_release'  '2000':6 'o':2 'punk':1 'punkorama':4 'rama':3 'tour':5
                                     'search_rest'  '00poprockelectronic':1 'gr':3 'punk':4 'rock':2
                                    'search_combo'  '00poprockelectronic':12 '2000':11C 'bouncing':4B 'gr':14 'great':3A 'is':2A 'k8':1A 'o':7C 'punk':6C,15 'punkorama':9C 'rama':8C 'rock':13 'souls':5B 'tour':10C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['punk rock', 'punk', 'pop punk', 'rock', 'hardcore']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622659274.6565034  (2021-06-02 20:41:14)
                             'size'  4237917