======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '302'
                                          'artist'  'Zombie Nation'
                                     'text_people'  ''
                                         'release'  'Absorber'
                                           'title'  'Stricken'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['electronica', 'trance', 'techno', 'electronic', 'electro']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno'
                                             'bpm'  '135.004'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Absorber'
'TBPM' (BPM (beats per minute))                     '135.004'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Stricken'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Zombie Nation'
'TRCK' (Track number/Position in set)               '8'
'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:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronica', 'trance', 'techno', 'electronic', 'electro']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.39 dB'
'TXXX:replaygain_track_peak'                        '0.543726'

========================== row from database ==========================
                                              'id'  1303036
                                            'path'  /data/Music/Bulk/00poprockelectronic/Zombie Nation/08 - Stricken.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  302
                                           'genre'  electronic-th-techno
                                        'filesize'  7255937
                                           'mtime'  1620573516
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 08 electronic th techno
                                      'tag_artist'  Zombie Nation
                                     'tag_release'  Absorber
                                       'tag_title'  Stricken
                                             'bpm'  135.004
                                    'search_title'  'stricken':1
                                   'search_artist'  'nation':2 'zombie':1
                                  'search_release'  'absorber':1
                                     'search_rest'  '00poprockelectronic':1 'electronic':2 'techno':4 'th':3
                                    'search_combo'  '00poprockelectronic':5 'absorber':4C 'electronic':6 'nation':3B 'stricken':1A 'techno':8 'th':7 'zombie':2B
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-3', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'trance', 'techno', 'electronic', 'electro']
                                        'tag_date'  2003
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620573516.0394585  (2021-05-09 17:18:36)
                             'size'  7255937