======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '110'
                                          'artist'  'The Spotnicks'
                                     'text_people'  ''
                                         'release'  'The Spotnicks in Paris'
                                           'title'  'Say Mama'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'surf', 'ed hits', 'guitar', '60s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '20'
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'rock-pop-surf'
                                             'bpm'  '121.6'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'The Spotnicks in Paris'
'TBPM' (BPM (beats per minute))                     '121.6'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-surf'
'TDOR' (Original release time)                      '1989'
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         'Say Mama'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Spotnicks'
'TPE2' (Band/orchestra/accompaniment)               'The Spotnicks'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'SweDisc'
'TRCK' (Track number/Position in set)               '4/20'
'TSO2'                                              'Spotnicks, The'
'TSOP' (Performer sort order)                       'Spotnicks, The'
'TXXX:Artists'                                      'The Spotnicks'
'TXXX:CATALOGNUMBER'                                'SWECD 407'
'TXXX:MusicBrainz Album Artist Id'                  'd976e2c9-31cc-4d34-82d6-4b3641692026'
'TXXX:MusicBrainz Album Id'                         '4f940c65-536d-45a9-9f6d-c7b9fc227b33'
'TXXX:MusicBrainz Album Release Country'            'SE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'd976e2c9-31cc-4d34-82d6-4b3641692026'
'TXXX:MusicBrainz Release Group Id'                 'f45efeb0-ee68-385c-9dcc-79798728d347'
'TXXX:MusicBrainz Release Track Id'                 '1b4ca7f6-a891-34bd-bf06-d188381fa9f7'
'TXXX:Q-HAP'                                        '3'
'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'                                   ['instrumental', 'surf', 'ed hits', 'guitar', '60s']
'TXXX:originalyear'                                 '1989'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.23 dB'
'TXXX:replaygain_track_peak'                        '0.457524'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'44b1f7d3-6e98-4020-a79f-b47bb2c43ea7')

========================== row from database ==========================
                                              'id'  441366
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/The Spotnicks-1962-1990-23 cd/The Spotnicks-1963-In Paris/04_Say Mama.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  110
                                           'genre'  rock-pop-surf
                                        'filesize'  1866839
                                           'mtime'  1620736519
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 1962 1990 23 cd 1963 In 04_Say rock pop surf
                                      'tag_artist'  The Spotnicks
                                     'tag_release'  The Spotnicks in Paris
                                       'tag_title'  Say Mama
                                             'bpm'  121.6
                                    'search_title'  'mama':2 'say':1
                                   'search_artist'  'spotnicks':2 'the':1
                                  'search_release'  'in':3 'paris':4 'spotnicks':2 'the':1
                                     'search_rest'  '04':7 '1962':1 '1963':5 '1990':2 '23':3 'cd':4 'in':6 'pop':10 'rock':9 'say':8 'surf':11
                                    'search_combo'  '04':15 '1962':9 '1963':13 '1990':10 '23':11 'cd':12 'in':7C,14 'mama':2A 'paris':8C 'pop':18 'rock':17 'say':1A,16 'spotnicks':4B,6C 'surf':19 'the':3B,5C
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'surf', 'ed hits', 'guitar', '60s']
                                        'tag_date'  1989
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736518.7966847  (2021-05-11 14:35:18)
                             'size'  1866839