======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '250'
                                          'artist'  'Earth, Wind & Fire'
                                     'text_people'  ''
                                         'release'  'Constellations: The Universe of Earth, Wind & Fire'
                                           'title'  'Stand by Me - Maurice White'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-3', 'Q-HHRNBTT-2', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['rnb', '70s', 'soul', 'funk', 'disco']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-rnb'
                                             'bpm'  '118.152'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Constellations: The Universe of Earth, Wind & Fire'
'TBPM' (BPM (beats per minute))                     '118.152'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-rnb'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'Stand by Me - Maurice White'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Earth, Wind & Fire'
'TPE2' (Band/orchestra/accompaniment)               'Earth, Wind & Fire'
'TRCK' (Track number/Position in set)               '11'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rnb', '70s', 'soul', 'funk', 'disco']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.28 dB'
'TXXX:replaygain_track_peak'                        '0.623924'

========================== row from database ==========================
                                              'id'  1360863
                                            'path'  /data/Music/Bulk/00poprockelectronic/1985 complete/271 Maurice White - Stand By Me.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  250
                                           'genre'  rock-pop-early-rnb
                                        'filesize'  10070016
                                           'mtime'  1620736371
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1985 complete 271 By rock pop early rnb
                                      'tag_artist'  Earth, Wind & Fire
                                     'tag_release'  Constellations: The Universe of Earth, Wind & Fire
                                       'tag_title'  Stand by Me - Maurice White
                                             'bpm'  118.152
                                    'search_title'  'by':2 'maurice':4 'me':3 'stand':1 'white':5
                                   'search_artist'  'earth':1,2 'fire':4 'wind':3
                                  'search_release'  'constellations':1,2 'earth':6,7 'fire':9 'of':5 'the':3 'universe':4 'wind':8
                                     'search_rest'  '00poprockelectronic':1 '1985':2 '271':4 'by':5 'complete':3 'early':8 'pop':7 'rnb':9 'rock':6
                                    'search_combo'  '00poprockelectronic':19 '1985':20 '271':22 'by':2A,23 'complete':21 'constellations':10C,11C 'early':26 'earth':6B,7B,15C,16C 'fire':9B,18C 'maurice':4A 'me':3A 'of':14C 'pop':25 'rnb':27 'rock':24 'stand':1A 'the':12C 'universe':13C 'white':5A 'wind':8B,17C
                                    'tag_tracknum'  11
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rnb', '70s', 'soul', 'funk', 'disco']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736371.3619232  (2021-05-11 14:32:51)
                             'size'  10070016