======================== unified (from filesystem) ========================
                                         'bitrate'  '242.699'
                                        'duration'  '291'
                                          'artist'  'Depeche Mode'
                                     'text_people'  ''
                                         'release'  'The Singles 86-98 CD1'
                                           'title'  'Useless'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'new wave', 'electronic', 'synthpop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'electronic-we-electropop or synthpop'
                                             'bpm'  '96.072'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'Exact Audio Copy(Secure Mode'
'COMM:ID3v1 Comment:XXX'                            'Exact Audio Copy(Secure Mode'
'TALB' (Album/Movie/Show title)                     'The Singles 86-98 CD1'
'TBPM' (BPM (beats per minute))                     '96.072'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-electropop or synthpop'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'Useless'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Depeche Mode'
'TRCK' (Track number/Position in set)               '18'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'new wave', 'electronic', 'synthpop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.17 dB'
'TXXX:replaygain_track_peak'                        '0.424819'

========================== row from database ==========================
                                              'id'  1298542
                                            'path'  /data/Music/Bulk/00poprockelectronic/Depeche Mode/1998-Depeche_Mode-The_Singles_86-98-2CD-1998-EOS/208-depeche_mode-useless-eos.mp3
                                         'working'  None
                                         'bitrate'  242
                                    'duration_sec'  291
                                           'genre'  electronic-we-electropop or synthpop
                                        'filesize'  8838203
                                           'mtime'  1628353904
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1998 Depeche_Mode The_Singles_86 2CD 1998 EOS 208 depeche_mode useless eos electronic we electropop or synthpop
                                      'tag_artist'  Depeche Mode
                                     'tag_release'  The Singles 86-98 CD1
                                       'tag_title'  Useless
                                             'bpm'  96.072
                                    'search_title'  'useless':1
                                   'search_artist'  'depeche':1 'mode':2
                                  'search_release'  '86':3 '8698':5 '98':4 'cd1':6 'singles':2 'the':1
                                     'search_rest'  '00poprockelectronic':1 '1998':2 '208':10 '2cd':8 '86':7 'depeche':3 'electronic':12 'electropop':14 'eos':9 'mode':4 'or':15 'singles':6 'synthpop':16 'the':5 'useless':11 'we':13
                                    'search_combo'  '00poprockelectronic':10 '1998':11 '208':19 '2cd':17 '86':6C,16 '8698':8C '98':7C 'cd1':9C 'depeche':2B,12 'electronic':21 'electropop':23 'eos':18 'mode':3B,13 'or':24 'singles':5C,15 'synthpop':25 'the':4C,14 'useless':1A,20 'we':22
                                    'tag_tracknum'  18
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-4', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'new wave', 'electronic', 'synthpop']
                                        'tag_date'  1998
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628353904.0779214  (2021-08-07 18:31:44)
                             'size'  8838203