======================== unified (from filesystem) ========================
                                         'bitrate'  '187.889'
                                        'duration'  '225'
                                          'artist'  'Tom Waits'
                                     'text_people'  ''
                                         'release'  'The Heart of Saturday Night'
                                           'title'  'Depot, Depot'
                                           'quals'  ("['Q-JZFKS-2', 'Q-HAP-2', 'Q-LOCALNESS-2', 'Q-UNU-2', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'Q-PLAY-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-2', 'q-other-3', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'rock', 'alternative', 'experimental', 'singer songwriter']"
                                     'discogstags'  "['jazz', 'blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  '11'
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos'
                                             'bpm'  '135.1'
                                             'key'  '1B'
                                        'acoustid'  '3f520ec9-6e51-4ea9-936d-41955432ca35'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'The Heart of Saturday Night'
'TBPM' (BPM (beats per minute))                     '135.1'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-eos'
'TDOR' (Original release time)                      '1974'
'TDRC' (Recording time)                             '1990'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['double bass', 'Jim Hughart']])
'TIT2' (Title/songname/content description)         'Depot, Depot'
'TKEY' (Initial key)                                '1B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Tom Waits'
'TPE2' (Band/orchestra/accompaniment)               'Tom Waits'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Asylum Records'
'TRCK' (Track number/Position in set)               '9/11'
'TSO2'                                              'Waits, Tom'
'TSOP' (Performer sort order)                       'Waits, Tom'
'TSRC' (ISRC (international standard recording code))  'USEP41718403'
'TXXX:ASIN'                                         'B000002GXS'
'TXXX:Acoustid Id'                                  '3f520ec9-6e51-4ea9-936d-41955432ca35'
'TXXX:Artists'                                      'Tom Waits'
'TXXX:BARCODE'                                      '075596059725'
'TXXX:CATALOGNUMBER'                                '1015-2'
'TXXX:MusicBrainz Album Artist Id'                  'c3aeb863-7b26-4388-94e8-5a240f2be21b'
'TXXX:MusicBrainz Album Id'                         '1828741e-e2b7-382e-968e-bc536eb154e2'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'c3aeb863-7b26-4388-94e8-5a240f2be21b'
'TXXX:MusicBrainz Release Group Id'                 '02e8018b-9dfe-35f4-99a1-6759c8b5f41c'
'TXXX:MusicBrainz Release Track Id'                 '4fb888be-44a8-3ed1-b3b6-e2892e0b0372'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['jazz', 'blues']
'TXXX:lastfmtags'                                   ['blues', 'rock', 'alternative', 'experimental', 'singer songwriter']
'TXXX:originalyear'                                 '1974'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.10 dB'
'TXXX:replaygain_track_peak'                        '0.711293'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'f18e37e9-37f3-4d62-81b2-34b201b9485b')

========================== row from database ==========================
                                              'id'  1366933
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/00songwriter-eos/Tom Waits/1974 - The Heart of Saturday Night/MBZ;#Tom Waits;#The Heart of Saturday Night;#09;#Depot, Depot.mp3
                                         'working'  None
                                         'bitrate'  187
                                    'duration_sec'  225
                                           'genre'  ifs-songwriter-eos
                                        'filesize'  5376221
                                           'mtime'  1639508239
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 00songwriter eos 1974 MBZ;#Tom Waits;#The Night;#09;#Depot, ifs songwriter eos
                                      'tag_artist'  Tom Waits
                                     'tag_release'  The Heart of Saturday Night
                                       'tag_title'  Depot, Depot
                                             'bpm'  135.1
                                    'search_title'  'depot':1,2
                                   'search_artist'  'tom':1 'waits':2
                                  'search_release'  'heart':2 'night':5 'of':3 'saturday':4 'the':1
                                     'search_rest'  '00singer':1 '00songwriter':4 '09':15,18 '1974':5 'depot':16,19 'eos':3 'ifs':20 'mbz':6,8 'night':14,17 'songwriter':2 'the':11,13 'tom':7,9 'waits':10,12
                                    'search_combo'  '00singer':10 '00songwriter':13 '09':24,27 '1974':14 'depot':1A,2A,25,28 'eos':12 'heart':6C 'ifs':29 'mbz':15,17 'night':9C,23,26 'of':7C 'saturday':8C 'songwriter':11 'the':5C,20,22 'tom':3B,16,18 'waits':4B,19,21
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'rock', 'alternative', 'experimental', 'singer songwriter']
                                        'tag_date'  1990
                                     'discogstags'  ['jazz', 'blues']

============================== file details ==============================
                                           'mtime'  1639508238.7593493  (2021-12-14 19:57:18)
                             'size'  5376221