======================== unified (from filesystem) ========================
                                         'bitrate'  '127.992'
                                        'duration'  '403'
                                          'artist'  'Kool & The Gang'
                                     'text_people'  ''
                                         'release'  'Ultimate Best of'
                                           'title'  "Let's go dancing"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-3', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', '70s', 'soul', 'funk', 'disco']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '96.484'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Ultimate Best of'
'TBPM' (BPM (beats per minute))                     '96.484'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '2009'
'TIT2' (Title/songname/content description)         "Let's go dancing"
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Kool & The Gang'
'TPE2' (Band/orchestra/accompaniment)               'Kool & The Gang'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', '70s', 'soul', 'funk', 'disco']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+4.38 dB'
'TXXX:replaygain_track_peak'                        '0.415794'

========================== row from database ==========================
                                              'id'  1515686
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Kool !26 The Gang - Let_s go dancing.mp3
                                         'working'  None
                                         'bitrate'  127
                                    'duration_sec'  403
                                           'genre'  funk or soul
                                        'filesize'  6459056
                                           'mtime'  1628357954
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] !26 Let_s funk or soul
                                      'tag_artist'  Kool & The Gang
                                     'tag_release'  Ultimate Best of
                                       'tag_title'  Let's go dancing
                                             'bpm'  96.484
                                    'search_title'  'dancing':5 'go':4 'let':1 'lets':3 's':2
                                   'search_artist'  'gang':3 'kool':1 'the':2
                                  'search_release'  'best':2 'of':3 'ultimate':1
                                     'search_rest'  '00poprockelectronic':1 '26':7 'files':5,6 'funk':10 'let':8 'loose':3,4 'or':11 's':9 'soul':12 'unsorted':2
                                    'search_combo'  '00poprockelectronic':12 '26':18 'best':10C 'dancing':5A 'files':16,17 'funk':21 'gang':8B 'go':4A 'kool':6B 'let':1A,19 'lets':3A 'loose':14,15 'of':11C 'or':22 's':2A,20 'soul':23 'the':7B 'ultimate':9C 'unsorted':13
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', '70s', 'soul', 'funk', 'disco']
                                        'tag_date'  2009
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357953.695739  (2021-08-07 19:39:13)
                             'size'  6459056