======================== unified (from filesystem) ========================
                                         'bitrate'  '291.245'
                                        'duration'  '367'
                                          'artist'  'Type O Negative'
                                     'text_people'  ''
                                         'release'  'Bloody Kisses'
                                           'title'  "Can't Lose You"
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-4', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['metal', 'gothic', 'doom metal', 'gothic rock', 'gothic metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  ''
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'eid-metal-doom or gothic'
                                             'bpm'  '117.945'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00000A05 00000B04 00002905'
'COMM:iTunNORM:eng'                                 (' 00000A05 00000B04 00002905 000021AF 00052647 0002FFBC 00008000 00008000 '
 '000104D3 000104D3')
'TALB' (Album/Movie/Show title)                     'Bloody Kisses'
'TBPM' (BPM (beats per minute))                     '117.945'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-doom or gothic'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         "Can't Lose You"
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Type O Negative'
'TRCK' (Track number/Position in set)               '14'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME v3.97 (beta)'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['metal', 'gothic', 'doom metal', 'gothic rock', 'gothic metal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.70 dB'
'TXXX:replaygain_track_peak'                        '0.558571'

========================== row from database ==========================
                                              'id'  1505688
                                            'path'  /data/Music/Bulk/00dwimp/Type O Negative/Type O Negative - Bloody Kisses/14. Type O Negative - Can_t Lose You.mp3
                                         'working'  None
                                         'bitrate'  291
                                    'duration_sec'  367
                                           'genre'  eid-metal-doom or gothic
                                        'filesize'  13368701
                                           'mtime'  1620310435
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 14. Can_t eid metal doom or gothic
                                      'tag_artist'  Type O Negative
                                     'tag_release'  Bloody Kisses
                                       'tag_title'  Can't Lose You
                                             'bpm'  117.945
                                    'search_title'  'can':1 'cant':3 'lose':4 't':2 'you':5
                                   'search_artist'  'negative':3 'o':2 'type':1
                                  'search_release'  'bloody':1 'kisses':2
                                     'search_rest'  '00dwimp':1 '14':2,3 'can':4 'doom':8 'eid':6 'gothic':10 'metal':7 'or':9 't':5
                                    'search_combo'  '00dwimp':11 '14':12,13 'bloody':9C 'can':1A,14 'cant':3A 'doom':18 'eid':16 'gothic':20 'kisses':10C 'lose':4A 'metal':17 'negative':8B 'o':7B 'or':19 't':2A,15 'type':6B 'you':5A
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['metal', 'gothic', 'doom metal', 'gothic rock', 'gothic metal']
                                        'tag_date'  1993
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620310435.055028  (2021-05-06 16:13:55)
                             'size'  13368701