======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '517'
                                          'artist'  'Chemical Brothers'
                                     'text_people'  ''
                                         'release'  'Surrender'
                                           'title'  'The Sunshine Underground'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['electronic', 'big beat', 'dance', 'techno', 'electronica']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-bigbeat'
                                             'bpm'  '139.851'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '30-12-2000'
'COMM:ID3v1 Comment:XXX'                            '30-12-2000'
'TALB' (Album/Movie/Show title)                     'Surrender'
'TBPM' (BPM (beats per minute))                     '139.851'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-bigbeat'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'The Sunshine Underground'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Chemical Brothers'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['electronic', 'big beat', 'dance', 'techno', 'electronica']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.16 dB'
'TXXX:replaygain_track_peak'                        '0.468109'

========================== row from database ==========================
                                              'id'  1406882
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/The Chemical Brothers - Chemical Brothers/Chemical Brothers - The Sunshine Underground.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  517
                                           'genre'  electronic-generic or radio-bigbeat
                                        'filesize'  8284959
                                           'mtime'  1621695895
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat electronic generic or radio bigbeat
                                      'tag_artist'  Chemical Brothers
                                     'tag_release'  Surrender
                                       'tag_title'  The Sunshine Underground
                                             'bpm'  139.851
                                    'search_title'  'sunshine':2 'the':1 'underground':3
                                   'search_artist'  'brothers':2 'chemical':1
                                  'search_release'  'surrender':1
                                     'search_rest'  '00poprockelectronic':1 'bigbeat':8 'dance':3 'electronic':5 'generic':2 'or':6 'radio':7 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':7 'bigbeat':14 'brothers':5B 'chemical':4B 'dance':9 'electronic':11 'generic':8 'or':12 'radio':13 'sunshine':2A 'surrender':6C 'the':1A 'trapbeat':10 'underground':3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'big beat', 'dance', 'techno', 'electronica']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621695895.1772325  (2021-05-22 17:04:55)
                             'size'  8284959