======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '226'
                                          'artist'  'No Doubt'
                                     'text_people'  ''
                                         'release'  'Ska-Face Live In Germany 1997-'
                                           'title'  'Ob-La-Di Ob-La-Da'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['female vocalists', 'alternative', 'ska', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-ska'
                                             'bpm'  '126.174'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Live Cover of the Beatles'
'TALB' (Album/Movie/Show title)                     'Ska-Face Live In Germany 1997-'
'TBPM' (BPM (beats per minute))                     '126.174'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-ska'
'TIT2' (Title/songname/content description)         'Ob-La-Di Ob-La-Da'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'No Doubt'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['female vocalists', 'alternative', 'ska', 'pop', 'rock']
'TXXX:q-bass'                                       '3'
'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'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.37 dB'
'TXXX:replaygain_track_peak'                        '0.225065'

========================== row from database ==========================
                                              'id'  1295249
                                            'path'  /data/Music/Bulk/00poprockelectronic/No Doubt/MBZ;#No Doubt;#Ska-Face Live In Germany 1997-03-08;#10;#Ob-La-Di Ob-La-Da.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  226
                                           'genre'  loc-style-reggae or dub or ska or dancehall-ska
                                        'filesize'  3631437
                                           'mtime'  1620524733
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#No Doubt;#Ska 03 08;#10;#Ob loc style reggae or dub or ska or dancehall ska
                                      'tag_artist'  No Doubt
                                     'tag_release'  Ska-Face Live In Germany 1997-
                                       'tag_title'  Ob-La-Di Ob-La-Da
                                             'bpm'  126.174
                                    'search_title'  'da':7 'di':3 'la':2,6 'ob':1,5 'oblada':8 'obladi':4
                                   'search_artist'  'doubt':2 'no':1
                                  'search_release'  '1997':7,8 'face':2 'germany':6 'in':5 'live':4 'ska':1 'skaface':3
                                     'search_rest'  '00poprockelectronic':1 '08':10,13 '10':11,14 'dancehall':22 'doubt':6,8 'dub':20 'loc':16 'mbz':2,4 'no':3,5 'ob':12,15 'or':19 'reggae':18 'ska':7,9,21 'style':17
                                    'search_combo'  '00poprockelectronic':19 '08':28,31 '10':29,32 '1997':17C,18C 'da':7A 'dancehall':40 'di':3A 'doubt':10B,24,26 'dub':38 'face':12C 'germany':16C 'in':15C 'la':2A,6A 'live':14C 'loc':34 'mbz':20,22 'no':9B,21,23 'ob':1A,5A,30,33 'oblada':8A 'obladi':4A 'or':37 'reggae':36 'ska':11C,25,27,39 'skaface':13C 'style':35
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['female vocalists', 'alternative', 'ska', 'pop', 'rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524733.2112153  (2021-05-09 03:45:33)
                             'size'  3631437