======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '229'
                                          'artist'  'Foreigner'
                                     'text_people'  ''
                                         'release'  'Billboard Top Pop Singles of 1977'
                                           'title'  'Feels Like The First Time'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'rock', 'hard rock', 'pop', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '31'
                                      'tracktotal'  ''
                                            'date'  '1977'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted;rock-cppex;set-pl-billboard'
                                             'bpm'  '107.549'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Billboard'
'TALB' (Album/Movie/Show title)                     'Billboard Top Pop Singles of 1977'
'TBPM' (BPM (beats per minute))                     '107.549'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted', 'rock-cppex', 'set-pl-billboard']
'TDRC' (Recording time)                             '1977'
'TIT2' (Title/songname/content description)         'Feels Like The First Time'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Foreigner'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '31'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'rock', 'hard rock', 'pop', 'classic rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'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'                        '+0.43 dB'
'TXXX:replaygain_track_peak'                        '0.545029'

========================== row from database ==========================
                                              'id'  1320303
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/Billboard Top100/1977/031 - Foreigner - Feels Like The First Time.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  229
                                           'genre'  electronic-generic or radio-unsorted;rock-cppex;set-pl-billboard
                                        'filesize'  4594889
                                           'mtime'  1620737131
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Top100 031 electronic generic radio unsorted;rock cppex;set pl billboard
                                      'tag_artist'  Foreigner
                                     'tag_release'  Billboard Top Pop Singles of 1977
                                       'tag_title'  Feels Like The First Time
                                             'bpm'  107.549
                                    'search_title'  'feels':1 'first':4 'like':2 'the':3 'time':5
                                   'search_artist'  'foreigner':1
                                  'search_release'  '1977':6 'billboard':1 'of':5 'pop':3 'singles':4 'top':2
                                     'search_rest'  '00poprockelectronic':1 'billboard':15 'cppex':10,12 'electronic':3 'generic':4 'pl':14 'radio':5 'rock':7,9 'set':11,13 'top100':2 'unsorted':6,8
                                    'search_combo'  '00poprockelectronic':13 '1977':12C 'billboard':7C,27 'cppex':22,24 'electronic':15 'feels':1A 'first':4A 'foreigner':6B 'generic':16 'like':2A 'of':11C 'pl':26 'pop':9C 'radio':17 'rock':19,21 'set':23,25 'singles':10C 'the':3A 'time':5A 'top':8C 'top100':14 'unsorted':18,20
                                    'tag_tracknum'  31
                                      'num_images'  0
                                             'key'  9B
                                           '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-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'rock', 'hard rock', 'pop', 'classic rock']
                                        'tag_date'  1977
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737130.5137146  (2021-05-11 14:45:30)
                             'size'  4594889