======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '696'
                                          'artist'  'Underworld'
                                     'text_people'  ''
                                         'release'  'Anthology 1992-2002 (ADVANCE)'
                                           'title'  'Born Slippy'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-4', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['electronica', 'dance', 'techno', 'electronic', 'trance']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno;electronic-th-trance'
                                             'bpm'  '140.044'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Anthology 1992-2002 (ADVANCE)'
'TBPM' (BPM (beats per minute))                     '140.044'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-th-techno', 'electronic-th-trance']
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Born Slippy'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Underworld'
'TRCK' (Track number/Position in set)               '3'
'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'                                   ['electronica', 'dance', 'techno', 'electronic', 'trance']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.79 dB'
'TXXX:replaygain_track_peak'                        '0.584089'

========================== row from database ==========================
                                              'id'  1289256
                                            'path'  /data/Music/Bulk/00poprockelectronic/Underworld/Anthology/03 - Born Slippy.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  696
                                           'genre'  electronic-th-techno;electronic-th-trance
                                        'filesize'  16723964
                                           'mtime'  1620572449
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 03 electronic techno;electronic trance
                                      'tag_artist'  Underworld
                                     'tag_release'  Anthology 1992-2002 (ADVANCE)
                                       'tag_title'  Born Slippy
                                             'bpm'  140.044
                                    'search_title'  'born':1 'slippy':2
                                   'search_artist'  'underworld':1
                                  'search_release'  '1992':2 '19922002':4 '2002':3 'advance':5,6 'anthology':1
                                     'search_rest'  '00poprockelectronic':1 'electronic':2,4,6 'techno':3,5 'trance':7
                                    'search_combo'  '00poprockelectronic':10 '1992':5C '19922002':7C '2002':6C 'advance':8C,9C 'anthology':4C 'born':1A 'electronic':11,13,15 'slippy':2A 'techno':12,14 'trance':16 'underworld':3B
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-4', 'q-other-1', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'dance', 'techno', 'electronic', 'trance']
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620572448.6046307  (2021-05-09 17:00:48)
                             'size'  16723964