======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '163'
                                          'artist'  'Golden Gate Quartet'
                                     'text_people'  ''
                                         'release'  'Radio Transcriptions in Chronological Order 1941-1944'
                                           'title'  'Brother Bill'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['gospel', 'blues', 'spiritual', 'jazz', 'soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '32'
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'loc-namerica-gospel'
                                             'bpm'  '90.090'
                                             'key'  '10B'
                                        'acoustid'  '4dbb9dfa-468d-46ef-8ecc-e9b9cd65d0e3'
rest: ''

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

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'COMM::eng'                                         '[mudmashers]'
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'TALB' (Album/Movie/Show title)                     'Radio Transcriptions in Chronological Order 1941-1944'
'TBPM' (BPM (beats per minute))                     '90.090'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-gospel'
'TDOR' (Original release time)                      '1996'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Brother Bill'
'TKEY' (Initial key)                                '10B'
'TLEN' (Length)                                     '164226'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Golden Gate Quartet'
'TPE2' (Band/orchestra/accompaniment)               'Golden Gate Quartet'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Document Records'
'TRCK' (Track number/Position in set)               '4/32'
'TSO2'                                              'Golden Gate Quartet, The'
'TSOP' (Performer sort order)                       'Golden Gate Quartet, The'
'TXXX:Acoustid Id'                                  '4dbb9dfa-468d-46ef-8ecc-e9b9cd65d0e3'
'TXXX:CATALOGNUMBER'                                'DOCD-5502'
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'TXXX:MusicBrainz Album Id'                         '16ce2e63-78b3-41dc-a6ec-3aa2e1a5f74a'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '3ac646f6-2057-485c-bf7e-205887c81426'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['gospel', 'blues', 'spiritual', 'jazz', 'soul']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.92 dB'
'TXXX:replaygain_track_peak'                        '0.457660'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'94e8985b-6209-4905-a484-2de732d6ad15')

========================== row from database ==========================
                                              'id'  768686
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Golden Gate Quartet--Complete Works 1937-44 (Document-5CD)/Radio Transcriptions 1941-1944/04 - Brother Bill.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  163
                                           'genre'  loc-namerica-gospel
                                        'filesize'  2658453
                                           'mtime'  1621627955
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Complete Works 1937 (Document 5CD) 04 loc namerica gospel
                                      'tag_artist'  Golden Gate Quartet
                                     'tag_release'  Radio Transcriptions in Chronological Order 1941-1944
                                       'tag_title'  Brother Bill
                                             'bpm'  90.09
                                    'search_title'  'bill':2 'brother':1
                                   'search_artist'  'gate':2 'golden':1 'quartet':3
                                  'search_release'  '1941':6 '19411944':8 '1944':7 'chronological':4 'in':3 'order':5 'radio':1 'transcriptions':2
                                     'search_rest'  '1937':7 '5cd':10,11 'complete':5 'country':4 'document':8,9 'exotica':2 'gospel':14 'jazz':1 'loc':12 'namerica':13 'oldies':3 'works':6
                                    'search_combo'  '1937':20 '1941':11C '19411944':13C '1944':12C '5cd':23,24 'bill':2A 'brother':1A 'chronological':9C 'complete':18 'country':17 'document':21,22 'exotica':15 'gate':4B 'golden':3B 'gospel':27 'in':8C 'jazz':14 'loc':25 'namerica':26 'oldies':16 'order':10C 'quartet':5B 'radio':6C 'transcriptions':7C 'works':19
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['gospel', 'blues', 'spiritual', 'jazz', 'soul']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627954.9109063  (2021-05-21 22:12:34)
                             'size'  2658453