======================== unified (from filesystem) ========================
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                                        'duration'  '167'
                                          'artist'  'The Donnas'
                                     'text_people'  'The Donnas'
                                         'release'  'Spend the Night'
                                           'title'  "I Don't Care (So There)"
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                                      'lastfmtags'  "['riot grrrl', 'garage rock', 'female vocalists', 'punk', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '13'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk-pop'
                                             'bpm'  '105.2'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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'TALB' (Album/Movie/Show title)                     'Spend the Night'
'TBPM' (BPM (beats per minute))                     '105.2'
'TCOM' (Composer)                                   'The Donnas'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk-pop'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         "I Don't Care (So There)"
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Donnas'
'TPE2' (Band/orchestra/accompaniment)               'The Donnas'
'TPUB' (Publisher)                                  'Lookout'
'TRCK' (Track number/Position in set)               '7/13'
'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:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['riot grrrl', 'garage rock', 'female vocalists', 'punk', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.54 dB'
'TXXX:replaygain_track_peak'                        '0.294362'

========================== row from database ==========================
                                              'id'  1519969
                                            'path'  /data/Music/Bulk/00poprockelectronic/the donnas - spend the night/The Donnas - 07 - I Don_t Care (so there).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  167
                                           'genre'  rock-gr-punk-pop
                                        'filesize'  4019485
                                           'mtime'  1621489540
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic donnas spend night 07 Don_t (so there) rock gr punk pop
                                      'tag_artist'  The Donnas
                                     'tag_release'  Spend the Night
                                       'tag_title'  I Don't Care (So There)
                                             'bpm'  105.2
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                                   'search_artist'  'donnas':2 'the':1
                                  'search_release'  'night':3 'spend':1 'the':2
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                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['riot grrrl', 'garage rock', 'female vocalists', 'punk', 'rock']
                                        'tag_date'  2002
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1621489540.4055057  (2021-05-20 07:45:40)
                             'size'  4019485