======================== unified (from filesystem) ========================
                                         'bitrate'  '218.461'
                                        'duration'  '512'
                                          'artist'  'Infected Mushroom'
                                     'text_people'  ''
                                         'release'  'IM the Supervisor'
                                           'title'  'IM the Supervisor'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['trance', 'goa', 'electronic', 'psychedelic', 'psytrance']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'eid-ebm or industrial or darkwave'
                                             'bpm'  '140.044'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'IM the Supervisor'
'TBPM' (BPM (beats per minute))                     '140.044'
'TCON' (Content type, a.k.a. Genre)                 'eid-ebm or industrial or darkwave'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'IM the Supervisor'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Infected Mushroom'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['trance', 'goa', 'electronic', 'psychedelic', 'psytrance']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.65 dB'
'TXXX:replaygain_track_peak'                        '0.450719'

========================== row from database ==========================
                                              'id'  1289264
                                            'path'  /data/Music/Bulk/00poprockelectronic/Infected Mushroom/01_infected_mushroom-im_the_supervisor-fwyh.mp3
                                         'working'  None
                                         'bitrate'  218
                                    'duration_sec'  512
                                           'genre'  eid-ebm or industrial or darkwave
                                        'filesize'  13997531
                                           'mtime'  1620296943
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 01_infected_mushroom im_the_supervisor fwyh eid ebm industrial darkwave
                                      'tag_artist'  Infected Mushroom
                                     'tag_release'  IM the Supervisor
                                       'tag_title'  IM the Supervisor
                                             'bpm'  140.044
                                    'search_title'  'im':1 'supervisor':3 'the':2
                                   'search_artist'  'infected':1 'mushroom':2
                                  'search_release'  'im':1 'supervisor':3 'the':2
                                     'search_rest'  '00poprockelectronic':1 '01':2 'darkwave':12 'ebm':10 'eid':9 'fwyh':8 'im':5 'industrial':11 'infected':3 'mushroom':4 'supervisor':7 'the':6
                                    'search_combo'  '00poprockelectronic':9 '01':10 'darkwave':20 'ebm':18 'eid':17 'fwyh':16 'im':1A,6C,13 'industrial':19 'infected':4B,11 'mushroom':5B,12 'supervisor':3A,8C,15 'the':2A,7C,14
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-1', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['trance', 'goa', 'electronic', 'psychedelic', 'psytrance']
                                        'tag_date'  2004
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620296942.5100095  (2021-05-06 12:29:02)
                             'size'  13997531