======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '141'
                                          'artist'  'Simone Angel'
                                     'text_people'  ''
                                         'release'  "Greatest Hits Of The 90's CD8"
                                           'title'  'Contact'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-UNU-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['dance', 'dutch', 'female vocalists', 'eurodance', 'dancemania']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted'
                                             'bpm'  '136.828'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Greatest Hits Of The 90's CD8"
'TBPM' (BPM (beats per minute))                     '136.828'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-unsorted'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Contact'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Simone Angel'
'TRCK' (Track number/Position in set)               '16'
'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:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['dance', 'dutch', 'female vocalists', 'eurodance', 'dancemania']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.39 dB'
'TXXX:replaygain_track_peak'                        '0.440561'

========================== row from database ==========================
                                              'id'  1510809
                                            'path'  /data/Music/Bulk/00poprockelectronic/90s/Greatest Hits Of The 90_s CD8 - 16 - Contact - Simone Angel.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  141
                                           'genre'  electronic-generic or radio-unsorted
                                        'filesize'  5647630
                                           'mtime'  1621696069
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 90s 90_s 16 electronic generic or radio unsorted
                                      'tag_artist'  Simone Angel
                                     'tag_release'  Greatest Hits Of The 90's CD8
                                       'tag_title'  Contact
                                             'bpm'  136.828
                                    'search_title'  'contact':1
                                   'search_artist'  'angel':2 'simone':1
                                  'search_release'  '90':5 '90s':7 'cd8':8 'greatest':1 'hits':2 'of':3 's':6 'the':4
                                     'search_rest'  '00poprockelectronic':1 '90':3 '90s':2 'electronic':5 'generic':6 'or':7 'radio':8 's':4 'unsorted':9
                                    'search_combo'  '00poprockelectronic':12 '90':8C,14 '90s':10C,13 'angel':3B 'cd8':11C 'contact':1A 'electronic':16 'generic':17 'greatest':4C 'hits':5C 'of':6C 'or':18 'radio':19 's':9C,15 'simone':2B 'the':7C 'unsorted':20
                                    'tag_tracknum'  16
                                      'num_images'  0
                                             'key'  6B
                                           '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-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'dutch', 'female vocalists', 'eurodance', 'dancemania']
                                        'tag_date'  1995
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621696068.5443292  (2021-05-22 17:07:48)
                             'size'  5647630