======================== unified (from filesystem) ========================
                                         'bitrate'  '198.061'
                                        'duration'  '247'
                                          'artist'  'The Rolling Stones'
                                     'text_people'  ''
                                         'release'  'Forty Licks'
                                           'title'  'Fool to Cry'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'Q-PLAY-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'Q-PIANO-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['blues', 'rock', '60s', 'british', 'classic rock']"
                                     'discogstags'  "['rock', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '30'
                                      'tracktotal'  '40'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '134.199'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=196, count=0)
'TALB' (Album/Movie/Show title)                     'Forty Licks'
'TBPM' (BPM (beats per minute))                     '134.199'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '2002-09-30'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Burst mode)'
'TIT2' (Title/songname/content description)         'Fool to Cry'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Rolling Stones'
'TPE2' (Band/orchestra/accompaniment)               'The Rolling Stones'
'TPUB' (Publisher)                                  'Virgin'
'TRCK' (Track number/Position in set)               '30/40'
'TSOP' (Performer sort order)                       'Rolling Stones, The'
'TSRC' (ISRC (international standard recording code))  'GBCJN7600007'
'TXXX:ALBUMARTISTSORT'                              'Rolling Stones, The'
'TXXX:ASIN'                                         'B00006IR69'
'TXXX:BARCODE'                                      '0724381337820'
'TXXX:CATALOGNUMBER'                                'CDVD2964'
'TXXX:MusicBrainz Album Artist Id'                  'b071f9fa-14b0-4217-8e97-eb41da73f598'
'TXXX:MusicBrainz Album Id'                         '896263b0-ce1e-45dd-abd2-c5118d17d5d6'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        'b071f9fa-14b0-4217-8e97-eb41da73f598'
'TXXX:MusicIP PUID'                                 'e407ae8c-9d33-010b-382a-7866f64db86a'
'TXXX:MusicMagic Data'                              'AgEACLyPl++gjsqqhCIxsThEgAGDDYtL+rGb4ijehuvdAcHVheQG5aybkCPaDYx6iIKAAc53/23JEbXVgAHRqfey3Qi/J7CZgAKAAaAll/Cr7IIYAg0uQoQgg2qJMurJnwlHr6+w/X2psojW+VavqdTK1g2s3YH3gAH+8KIBAPjOyoiBzJDwGO6Dt2DUDbBLhvs='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:added_timestamp'                              '128930990202923527'
'TXXX:discogstags'                                  ['rock', 'classic rock']
'TXXX:lastfmtags'                                   ['blues', 'rock', '60s', 'british', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+4.38 dB'
'TXXX:replaygain_track_peak'                        '0.381502'

========================== row from database ==========================
                                              'id'  1344078
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/10 Rolling Stones - Fool To Cry.mp3
                                         'working'  None
                                         'bitrate'  198
                                    'duration_sec'  247
                                           'genre'  rock-cppex
                                        'filesize'  6140500
                                           'mtime'  1620737400
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 10 To rock cppex
                                      'tag_artist'  The Rolling Stones
                                     'tag_release'  Forty Licks
                                       'tag_title'  Fool to Cry
                                             'bpm'  134.199
                                    'search_title'  'cry':3 'fool':1 'to':2
                                   'search_artist'  'rolling':2 'stones':3 'the':1
                                  'search_release'  'forty':1 'licks':2
                                     'search_rest'  '00poprockelectronic':1 'cppex':9 'files':5,6 'loose':3,4 'rock':8 'to':7 'unsorted':2
                                    'search_combo'  '00poprockelectronic':9 'cppex':17 'cry':3A 'files':13,14 'fool':1A 'forty':7C 'licks':8C 'loose':11,12 'rock':16 'rolling':5B 'stones':6B 'the':4B 'to':2A,15 'unsorted':10
                                    'tag_tracknum'  30
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-PLAY-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'rock', '60s', 'british', 'classic rock']
                                        'tag_date'  2002
                                     'discogstags'  ['rock', 'classic rock']

============================== file details ==============================
                                           'mtime'  1620737400.419421  (2021-05-11 14:50:00)
                             'size'  6140500