======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '213'
                                          'artist'  'R.E.M.'
                                     'text_people'  ''
                                         'release'  'Document'
                                           'title'  'Disturbance at the Heron House'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative rock', 'indie', 'alternative', 'pop', 'rock']"
                                     'discogstags'  "['rock', 'alternative rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '11'
                                            'date'  '1987'
                                        'comments'  ''
                                           'genre'  'rock-pop'
                                             'bpm'  '131.498'
                                             'key'  '10B'
                                        'acoustid'  '2738f5fc-e42b-4cc6-ad90-2ad50cbb94e6'
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Berry - Buck - Mills - Stipe'
'TALB' (Album/Movie/Show title)                     'Document'
'TBPM' (BPM (beats per minute))                     '131.498'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop'
'TDOR' (Original release time)                      '1987'
'TDRC' (Recording time)                             '1987'
'TIT2' (Title/songname/content description)         'Disturbance at the Heron House'
'TKEY' (Initial key)                                '10B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'R.E.M.'
'TPE2' (Band/orchestra/accompaniment)               'R.E.M.'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'I.R.S. Records'
'TRCK' (Track number/Position in set)               '4/11'
'TSO2'                                              'R.E.M.'
'TSOP' (Performer sort order)                       'R.E.M.'
'TXXX:Acoustid Id'                                  '2738f5fc-e42b-4cc6-ad90-2ad50cbb94e6'
'TXXX:BARCODE'                                      '5099746538323'
'TXXX:CATALOGNUMBER'                                '465383 2'
'TXXX:MusicBrainz Album Artist Id'                  'ea4dfa26-f633-4da6-a52a-f49ea4897b58'
'TXXX:MusicBrainz Album Id'                         '08b52f05-3fc9-4c86-b854-670558bc1d22'
'TXXX:MusicBrainz Album Release Country'            'XE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'ea4dfa26-f633-4da6-a52a-f49ea4897b58'
'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:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'alternative rock']
'TXXX:lastfmtags'                                   ['alternative rock', 'indie', 'alternative', 'pop', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.35 dB'
'TXXX:replaygain_track_peak'                        '0.624687'

========================== row from database ==========================
                                              'id'  1341183
                                            'path'  /data/Music/Bulk/00poprockelectronic/R.E.M/REM - Document/04 - Disturbance At The Heron House.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  213
                                           'genre'  rock-pop
                                        'filesize'  3418907
                                           'mtime'  1636917793
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic REM 04 At The rock pop
                                      'tag_artist'  R.E.M.
                                     'tag_release'  Document
                                       'tag_title'  Disturbance at the Heron House
                                             'bpm'  131.498
                                    'search_title'  'at':2 'disturbance':1 'heron':4 'house':5 'the':3
                                   'search_artist'  'e':2 'm':3 'r':1 'rem':4
                                  'search_release'  'document':1
                                     'search_rest'  '00poprockelectronic':1 'at':3 'pop':6 'rem':2 'rock':5 'the':4
                                    'search_combo'  '00poprockelectronic':11 'at':2A,13 'disturbance':1A 'document':10C 'e':7B 'heron':4A 'house':5A 'm':8B 'pop':16 'r':6B 'rem':9B,12 'rock':15 'the':3A,14
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'indie', 'alternative', 'pop', 'rock']
                                        'tag_date'  1987
                                     'discogstags'  ['rock', 'alternative rock']

============================== file details ==============================
                                           'mtime'  1636917792.8464983  (2021-11-14 20:23:12)
                             'size'  3418907