======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '308'
                                          'artist'  'David Bowie'
                                     'text_people'  ''
                                         'release'  '1.Outside'
                                           'title'  'Wishful Beginnings'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-1', '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-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['classic rock', '80s', 'alternative', 'rock', 'glam rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '20'
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos'
                                             'bpm'  '115.326'
                                             'key'  '10A'
                                        'acoustid'  'fe25a296-47f6-4f4f-a3a1-c67efa51212c'
rest: ''

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

'TALB' (Album/Movie/Show title)                     '1.Outside'
'TBPM' (BPM (beats per minute))                     '115.326'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-eos'
'TDOR' (Original release time)                      '1995'
'TDRC' (Recording time)                             '1996-05-22'
'TIT2' (Title/songname/content description)         'Wishful Beginnings'
'TKEY' (Initial key)                                '10A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'David Bowie'
'TPE2' (Band/orchestra/accompaniment)               'David Bowie'
'TPOS' (Part of a set)                              '1/2'
'TPUB' (Publisher)                                  'Arista/BMG VICTOR, INC.'
'TRCK' (Track number/Position in set)               '13/20'
'TSO2'                                              'Bowie, David'
'TSOP' (Performer sort order)                       'Bowie, David'
'TSRC' (ISRC (international standard recording code))  'USBI19500063/USRF30000039'
'TXXX:ASIN'                                         'B000006ZVC'
'TXXX:Acoustid Id'                                  'fe25a296-47f6-4f4f-a3a1-c67efa51212c'
'TXXX:BARCODE'                                      '4988017063347'
'TXXX:CATALOGNUMBER'                                'BVCA-2801/BVCA-2802'
'TXXX:MusicBrainz Album Artist Id'                  '5441c29d-3602-4898-b1a1-b77fa23b8e50'
'TXXX:MusicBrainz Album Id'                         'd7684bf3-58be-3137-9f1a-351408da1fc7'
'TXXX:MusicBrainz Album Release Country'            'JP'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '5441c29d-3602-4898-b1a1-b77fa23b8e50'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['classic rock', '80s', 'alternative', 'rock', 'glam rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.44 dB'
'TXXX:replaygain_track_peak'                        '0.744613'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'fc523803-ec31-4ee1-b485-46e189977a13')

========================== row from database ==========================
                                              'id'  204628
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/David Bowie/David Bowie - 1995 - Outside/MBZ;#David Bowie;#1. Outside;#1995-09-00;#13;#Wishful Beginnings.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  308
                                           'genre'  ifs-songwriter-eos
                                        'filesize'  4946489
                                           'mtime'  1623430251
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 1995 MBZ;#David Bowie;#1. Outside;#1995 09 00;#13;#Wishful ifs songwriter eos
                                      'tag_artist'  David Bowie
                                     'tag_release'  1.Outside
                                       'tag_title'  Wishful Beginnings
                                             'bpm'  115.326
                                    'search_title'  'beginnings':2 'wishful':1
                                   'search_artist'  'bowie':2 'david':1
                                  'search_release'  '1':1 '1outside':3 'outside':2
                                     'search_rest'  '00':17,20 '00singer':1 '1':10,12 '13':18,21 '1995':4,14,16 'bowie':9,11 'david':6,8 'eos':3 'ifs':23 'mbz':5,7 'outside':13,15 'songwriter':2 'wishful':19,22
                                    'search_combo'  '00':24,27 '00singer':8 '1':5C,17,19 '13':25,28 '1995':11,21,23 '1outside':7C 'beginnings':2A 'bowie':4B,16,18 'david':3B,13,15 'eos':10 'ifs':30 'mbz':12,14 'outside':6C,20,22 'songwriter':9 'wishful':1A,26,29
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-4', 'q-other-1', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', '80s', 'alternative', 'rock', 'glam rock']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1623430251.3897934  (2021-06-11 18:50:51)
                             'size'  4946489