======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '247'
                                          'artist'  'Jimmy Nail'
                                     'text_people'  ''
                                         'release'  "100 Hits Of The 90's Disc 1"
                                           'title'  "Ain't No Doubt"
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['90s', 'soft rock', 'classic rock', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'rock-pop'
                                             'bpm'  '101.768'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "100 Hits Of The 90's Disc 1"
'TBPM' (BPM (beats per minute))                     '101.768'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         "Ain't No Doubt"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jimmy Nail'
'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'                                   ['90s', 'soft rock', 'classic rock', 'pop', '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'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.50 dB'
'TXXX:replaygain_track_peak'                        '0.429374'

========================== row from database ==========================
                                              'id'  1515063
                                            'path'  /data/Music/Bulk/00poprockelectronic/90s/04 - Jimmy Nail - Ain_t No Doubt.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  247
                                           'genre'  rock-pop
                                        'filesize'  5941851
                                           'mtime'  1620389166
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 90s 04 Ain_t rock pop
                                      'tag_artist'  Jimmy Nail
                                     'tag_release'  100 Hits Of The 90's Disc 1
                                       'tag_title'  Ain't No Doubt
                                             'bpm'  101.768
                                    'search_title'  'ain':1 'aint':3 'doubt':5 'no':4 't':2
                                   'search_artist'  'jimmy':1 'nail':2
                                  'search_release'  '1':9 '100':1 '90':5 '90s':7 'disc':8 'hits':2 'of':3 's':6 'the':4
                                     'search_rest'  '00poprockelectronic':1 '90s':2 'ain':3 'pop':6 'rock':5 't':4
                                    'search_combo'  '00poprockelectronic':17 '1':16C '100':8C '90':12C '90s':14C,18 'ain':1A,19 'aint':3A 'disc':15C 'doubt':5A 'hits':9C 'jimmy':6B 'nail':7B 'no':4A 'of':10C 'pop':22 'rock':21 's':13C 't':2A,20 'the':11C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  10A
                                           '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-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['90s', 'soft rock', 'classic rock', 'pop', 'rock']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620389166.0698037  (2021-05-07 14:06:06)
                             'size'  5941851