<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '99'
                                          'artist'  'Galt MacDermot'
                                     'text_people'  ''
                                         'release'  'Hair: Original Soundtrack Recording'
                                           'title'  'What a Piece of Work Is Man'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['soundtrack', 'hair', 'jazz', 'musical', 'funk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '24'
                                      'tracktotal'  '27'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '145.685'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f95382f1550>

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''<br/>                                     <img style="width:150px" src="image?fid=771272"/>
'TALB' (Album/Movie/Show title)                     'Hair: Original Soundtrack Recording'
'TBPM' (BPM (beats per minute))                     '145.685'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TDOR' (Original release time)                      '1979'
'TDRC' (Recording time)                             '1999-09-27'
'TIT2' (Title/songname/content description)         'What a Piece of Work Is Man'
'TKEY' (Initial key)                                '10B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Galt MacDermot'
'TPE2' (Band/orchestra/accompaniment)               'Galt MacDermot'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'RCA'
'TRCK' (Track number/Position in set)               '24/27'
'TSO2'                                              'MacDermot, Galt'
'TSOP' (Performer sort order)                       'MacDermot, Galt'
'TSRC' (ISRC (international standard recording code))  'USRC17908241'
'TXXX:ASIN'                                         'B00000JYU8'
'TXXX:BARCODE'                                      '078636781228'
'TXXX:CATALOGNUMBER'                                'RCA 07863 67812-2'
'TXXX:MusicBrainz Album Artist Id'                  '479e16b4-2b26-40d1-ba65-9ce5ea8ae6a6'
'TXXX:MusicBrainz Album Id'                         'd4f68297-0916-4d71-a9c3-bfad64fdcc81'
'TXXX:MusicBrainz Album Release Country'            'XE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'soundtrack'
'TXXX:MusicBrainz Artist Id'                        '479e16b4-2b26-40d1-ba65-9ce5ea8ae6a6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['soundtrack', 'hair', 'jazz', 'musical', 'funk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.13 dB'
'TXXX:replaygain_track_peak'                        '0.754188'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'93b077b7-7bc2-4676-83ba-89c041fbf42c')

========================== row from database ==========================
                                              'id'  771272
                                            'path'  /data/Music/Bulk/0soundtrack/Galt MacDermot Hair Soundtrack Recording Special Anniversary Edition/24 What a Piece of Work Is Man.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  99
                                           'genre'  soundtrack-video
                                        'filesize'  2411184
                                           'mtime'  1637438528
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack Special Anniversary Edition 24 soundtrack video
                                      'tag_artist'  Galt MacDermot
                                     'tag_release'  Hair: Original Soundtrack Recording
                                       'tag_title'  What a Piece of Work Is Man
                                             'bpm'  145.685
                                    'search_title'  'a':2 'is':6 'man':7 'of':4 'piece':3 'what':1 'work':5
                                   'search_artist'  'dermot':4 'galt':1 'mac':3 'macdermot':2
                                  'search_release'  'hair':1,2 'original':3 'recording':5 'soundtrack':4
                                     'search_rest'  '0soundtrack':1 '24':5 'anniversary':3 'edition':4 'soundtrack':6 'special':2 'video':7
                                    'search_combo'  '0soundtrack':17 '24':21 'a':2A 'anniversary':19 'dermot':11B 'edition':20 'galt':8B 'hair':12C,13C 'is':6A 'mac':10B 'macdermot':9B 'man':7A 'of':4A 'original':14C 'piece':3A 'recording':16C 'soundtrack':15C,22 'special':18 'video':23 'what':1A 'work':5A
                                    'tag_tracknum'  24
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['soundtrack', 'hair', 'jazz', 'musical', 'funk']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637438527.9908097  (2021-11-20 21:02:07)
                             'size'  2411184