======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '273'
                                          'artist'  'Dave Matthews'
                                     'text_people'  'David J. Matthews'
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '14'
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '133.1'
                                             'key'  '9B'
                                        'acoustid'  'beeb60f1-6026-4c7c-8e98-07c77d19f20c'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00001A1F 000007EC 0000EDEA 00007A93 00019DC6 00035663 00008C13 000089B4 '
 '0000D86D 00016558')
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000B64 0000000000B7E70C 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '14+9012A1A6B0337ED89A8C77565C80849B+3279495'
'TALB' (Album/Movie/Show title)                     'Some Devil'
'TBPM' (BPM (beats per minute))                     '133.1'
'TCMP'                                              '1'
'TCOM' (Composer)                                   'David J. Matthews'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDOR' (Original release time)                      '2003'
'TDRC' (Recording time)                             '2003-09-23'
'TENC' (Encoded by)                                 'iTunes v6.0.2.23'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['producer', 'Stephen Harris']])
'TIT2' (Title/songname/content description)         'Save Me'
'TKEY' (Initial key)                                '9B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Dave Matthews'
'TPE2' (Band/orchestra/accompaniment)               'Dave Matthews'
'TPOS' (Part of a set)                              '1/2'
'TPUB' (Publisher)                                  'RCA'
'TRCK' (Track number/Position in set)               '7/14'
'TSO2'                                              'Matthews, Dave'
'TSOP' (Performer sort order)                       'Matthews, Dave'
'TSRC' (ISRC (international standard recording code))  'USRC10301320'
'TXXX:ASIN'                                         'B0000C3GZ2'
'TXXX:Acoustid Id'                                  'beeb60f1-6026-4c7c-8e98-07c77d19f20c'
'TXXX:BARCODE'                                      '828765516723'
'TXXX:CATALOGNUMBER'                                'RCA 82876 55167-2'
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'TXXX:MusicBrainz Album Id'                         'a8c52e79-59a2-4225-b8b5-28c01442b141'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '2fa95b32-3c11-42d7-b495-12fc6be0a024'
'TXXX:Peak Level (R128)'                            '+1.0 dBTP; +1.0 Left; +0.6 Right'
'TXXX:Peak Level (Sample)'                          '+0.0 dB; +0.0 Left; +0.0 Right'
'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:Tool Name'                                    'Media Center'
'TXXX:Tool Version'                                 '21.0.76'
'TXXX:Volume Level (R128)'                          '-14.3162698745727539'
'TXXX:Volume Level (ReplayGain)'                    '-9.3162698745727539'
'TXXX:discogstags'                                  ['rock', 'alternative rock', 'pop rock']
'TXXX:lastfmtags'                                   ['jam', 'rock', 'acoustic', 'alternative', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.28 dB'
'TXXX:replaygain_track_peak'                        '0.423063'
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========================== row from database ==========================
                                              'id'  1378223
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Dave Matthews - (2003) Some Devil (limited edition)/1-07 Save Me.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  273
                                           'genre'  ifs-songwriter
                                        'filesize'  5823246
                                           'mtime'  1636401752
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos (2003) (limited edition) 1 07 ifs songwriter
                                      'tag_artist'  Dave Matthews
                                     'tag_release'  Some Devil
                                       'tag_title'  Save Me
                                             'bpm'  133.1
                                    'search_title'  'me':2 'save':1
                                   'search_artist'  'dave':1 'matthews':2
                                  'search_release'  'devil':2 'some':1
                                     'search_rest'  '00singer':1 '1':10 '2003':4,5 'edition':8,9 'eos':3 'ifs':11 'limited':6,7 'songwriter':2
                                    'search_combo'  '00singer':7 '1':16 '2003':10,11 'dave':3B 'devil':6C 'edition':14,15 'eos':9 'ifs':17 'limited':12,13 'matthews':4B 'me':2A 'save':1A 'some':5C 'songwriter':8
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  9B
                                           '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-3', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['jam', 'rock', 'acoustic', 'alternative', 'singer songwriter']
                                        'tag_date'  2003
                                     'discogstags'  ['rock', 'alternative rock', 'pop rock']

============================== file details ==============================
                                           'mtime'  1636401752.1520777  (2021-11-08 21:02:32)
                             'size'  5823246