======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '830'
                                          'artist'  'Oliver de Coque'
                                     'text_people'  ''
                                         'release'  'Classic Hits'
                                           'title'  'Nwanne Di Na Mba'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['nigeria', 'folk', 'ouest africa', 'the vitamin b12']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '06'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'loc-africa-nigeria'
                                             'bpm'  '138.417'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Classic Hits'
'TBPM' (BPM (beats per minute))                     '138.417'
'TCON' (Content type, a.k.a. Genre)                 'loc-africa-nigeria'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Nwanne Di Na Mba'
'TKEY' (Initial key)                                '9B'
'TLEN' (Length)                                     '830000'
'TPE1' (Lead performer(s)/Soloist(s))               'Oliver de Coque'
'TPE2' (Band/orchestra/accompaniment)               'Oliver de Coque'
'TPUB' (Publisher)                                  'Leader'
'TRCK' (Track number/Position in set)               '06'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['nigeria', 'folk', 'ouest africa', 'the vitamin b12']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.15 dB'
'TXXX:replaygain_track_peak'                        '0.567789'

========================== row from database ==========================
                                              'id'  1351712
                                            'path'  /data/Music/Bulk/00poprockelectronic/2017-01-01 Best Of Dezember 2016/Olivier De Coque - Nwanne Di Na Mba.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  830
                                           'genre'  loc-africa-nigeria
                                        'filesize'  19940580
                                           'mtime'  1621630103
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 2017 01 01 Best Of Dezember 2016 Olivier De loc africa nigeria
                                      'tag_artist'  Oliver de Coque
                                     'tag_release'  Classic Hits
                                       'tag_title'  Nwanne Di Na Mba
                                             'bpm'  138.417
                                    'search_title'  'di':2 'mba':4 'na':3 'nwanne':1
                                   'search_artist'  'coque':3 'de':2 'oliver':1
                                  'search_release'  'classic':1 'hits':2
                                     'search_rest'  '00poprockelectronic':1 '2016':6 '2017':2 'africa':10 'best':3 'de':8 'dezember':5 'loc':9 'nigeria':11 'of':4 'olivier':7
                                    'search_combo'  '00poprockelectronic':10 '2016':15 '2017':11 'africa':19 'best':12 'classic':8C 'coque':7B 'de':6B,17 'dezember':14 'di':2A 'hits':9C 'loc':18 'mba':4A 'na':3A 'nigeria':20 'nwanne':1A 'of':13 'oliver':5B 'olivier':16
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['nigeria', 'folk', 'ouest africa', 'the vitamin b12']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630103.072423  (2021-05-21 22:48:23)
                             'size'  19940580