======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '625'
                                          'artist'  'Giuseppe Verdi; Berliner Philharmoniker, Carlo Maria Giulini'
                                     'text_people'  'Carlo Maria Giulini'
                                         'release'  'Requiem'
                                           'title'  'Requiem'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '10'
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '141.7'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Requiem'
'TBPM' (BPM (beats per minute))                     '141.7'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDOR' (Original release time)                      '1989'
'TDRC' (Recording time)                             '1989'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['orchestra', 'Berliner Philharmoniker'], ['solo and soprano vocals vocal', 'Sharon Sweet'], ['solo and tenor vocals vocal', 'Vinson Cole'], ['mezzo-soprano vocals and solo vocal', 'Florence Quivar'], ['bass vocals and solo vocal', 'Simon Estes']])
'TIT2' (Title/songname/content description)         'Requiem'
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Giuseppe Verdi'
'TPE2' (Band/orchestra/accompaniment)               'Giuseppe Verdi; Berliner Philharmoniker, Carlo Maria Giulini'
'TPE3' (Conductor/performer refinement)             'Carlo Maria Giulini'
'TPOS' (Part of a set)                              '1/2'
'TPUB' (Publisher)                                  'Deutsche Grammophon'
'TRCK' (Track number/Position in set)               '1/10'
'TSO2'                                              'Verdi, Giuseppe; Berliner Philharmoniker, Giulini, Carlo Maria'
'TSOP' (Performer sort order)                       'Verdi, Giuseppe'
'TXXX:BARCODE'                                      '028942367425'
'TXXX:CATALOGNUMBER'                                '423 674-2 GH2'
'TXXX:MusicBrainz Album Artist Id'                  'f1bedf1f-4445-4651-9c35-f4a3f3860a13/dea28aa9-1086-4ffa-8739-0ccc759de1ce/77d09862-c297-40a6-aea5-251a6fc34604'
'TXXX:MusicBrainz Album Id'                         '9ddb6d75-7efd-4f07-97c4-a54137dd9900'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'f1bedf1f-4445-4651-9c35-f4a3f3860a13'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.35 dB'
'TXXX:replaygain_track_peak'                        '0.774810'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'c54ae347-a2d3-43b6-8194-1c3617ffa68b')

========================== row from database ==========================
                                              'id'  1214338
                                            'path'  /data/Music/Bulk/00instruments-classical/Verdi/Requiem/Verdi - Requiem - 01.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  625
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  10004272
                                           'mtime'  1620561860
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical 01 prerock classical or classical instruments
                                      'tag_artist'  Giuseppe Verdi; Berliner Philharmoniker, Carlo Maria Giulini
                                     'tag_release'  Requiem
                                       'tag_title'  Requiem
                                             'bpm'  141.7
                                    'search_title'  'requiem':1
                                   'search_artist'  'berliner':4 'carlo':7 'giulini':9 'giuseppe':1 'maria':8 'philharmoniker':5,6 'verdi':2,3
                                  'search_release'  'requiem':1
                                     'search_rest'  '00instruments':1 'classical':2 'instruments':5 'or':4 'prerock':3
                                    'search_combo'  '00instruments':12 'berliner':5B 'carlo':8B 'classical':13 'giulini':10B 'giuseppe':2B 'instruments':16 'maria':9B 'or':15 'philharmoniker':6B,7B 'prerock':14 'requiem':1A,11C 'verdi':3B,4B
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1989
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561859.8265083  (2021-05-09 14:04:19)
                             'size'  10004272