======================== unified (from filesystem) ========================
                                         'bitrate'  '127.692'
                                        'duration'  '231'
                                          'artist'  'Everclear'
                                     'text_people'  ''
                                         'release'  'So Much for the Afterglow'
                                           'title'  'Father of Mine'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative rock', '90s', 'alternative', 'grunge', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'rock-gr-grunge'
                                             'bpm'  '129.150'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'So Much for the Afterglow'
'TBPM' (BPM (beats per minute))                     '129.150'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-grunge'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Father of Mine'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Everclear'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['alternative rock', '90s', 'alternative', 'grunge', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+6.19 dB'
'TXXX:replaygain_track_peak'                        '0.219378'

========================== row from database ==========================
                                              'id'  1284683
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Everclear-So Much for the Afterglow-06-Father of Mine.mp3
                                         'working'  None
                                         'bitrate'  127
                                    'duration_sec'  231
                                           'genre'  rock-gr-grunge
                                        'filesize'  3695512
                                           'mtime'  1636903150
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 06 rock gr grunge
                                      'tag_artist'  Everclear
                                     'tag_release'  So Much for the Afterglow
                                       'tag_title'  Father of Mine
                                             'bpm'  129.15
                                    'search_title'  'father':1 'mine':3 'of':2
                                   'search_artist'  'everclear':1
                                  'search_release'  'afterglow':5 'for':3 'much':2 'so':1 'the':4
                                     'search_rest'  '00poprockelectronic':1 'files':5,6 'gr':8 'grunge':9 'loose':3,4 'rock':7 'unsorted':2
                                    'search_combo'  '00poprockelectronic':10 'afterglow':9C 'everclear':4B 'father':1A 'files':14,15 'for':7C 'gr':17 'grunge':18 'loose':12,13 'mine':3A 'much':6C 'of':2A 'rock':16 'so':5C 'the':8C 'unsorted':11
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', '90s', 'alternative', 'grunge', 'rock']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636903149.6965468  (2021-11-14 16:19:09)
                             'size'  3695512