======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '217'
                                          'artist'  'Status Quo'
                                     'text_people'  ''
                                         'release'  'Whatever You Want - The Very B'
                                           'title'  'In The Army Now'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-3', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['hard rock', '80s', 'rock', 'british', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '104.498'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Whatever You Want - The Very B'
'TBPM' (BPM (beats per minute))                     '104.498'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'In The Army Now'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Status Quo'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['hard rock', '80s', 'rock', 'british', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.15 dB'
'TXXX:replaygain_track_peak'                        '0.623842'

========================== row from database ==========================
                                              'id'  1329083
                                            'path'  /data/Music/Bulk/00poprockelectronic/Status Quo/MBZ;#Status Quo;#Whatever You Want - The Very Best Of Status Quo;#04;#In The Army Now.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  217
                                           'genre'  rock-cppex
                                        'filesize'  5238152
                                           'mtime'  1620737299
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#Status Quo;#Whatever Best Of Quo;#04;#In rock cppex
                                      'tag_artist'  Status Quo
                                     'tag_release'  Whatever You Want - The Very B
                                       'tag_title'  In The Army Now
                                             'bpm'  104.498
                                    'search_title'  'army':3 'in':1 'now':4 'the':2
                                   'search_artist'  'quo':2 'status':1
                                  'search_release'  'b':6 'the':4 'very':5 'want':3 'whatever':1 'you':2
                                     'search_rest'  '00poprockelectronic':1 '04':13,16 'best':10 'cppex':19 'in':14,17 'mbz':2,4 'of':11 'quo':6,8,12,15 'rock':18 'status':3,5 'whatever':7,9
                                    'search_combo'  '00poprockelectronic':13 '04':25,28 'army':3A 'b':12C 'best':22 'cppex':31 'in':1A,26,29 'mbz':14,16 'now':4A 'of':23 'quo':6B,18,20,24,27 'rock':30 'status':5B,15,17 'the':2A,10C 'very':11C 'want':9C 'whatever':7C,19,21 'you':8C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['hard rock', '80s', 'rock', 'british', 'classic rock']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737299.3485184  (2021-05-11 14:48:19)
                             'size'  5238152