======================== unified (from filesystem) ========================
                                         'bitrate'  '255.54'
                                        'duration'  '235'
                                          'artist'  'Sirenia'
                                     'text_people'  ''
                                         'release'  'Nine Destinies And A Downfall'
                                           'title'  'The Other Side'
                                           '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-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['metal', 'gothic', 'female fronted metal', 'symphonic metal', 'gothic metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'eid-metal-doom or gothic'
                                             'bpm'  '111.578'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Nine Destinies And A Downfall'
'TBPM' (BPM (beats per minute))                     '111.578'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-doom or gothic'
'TDRC' (Recording time)                             '2007'
'TENC' (Encoded by)                                 'Winamp 5.35'
'TIT2' (Title/songname/content description)         'The Other Side'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sirenia'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Nuclear Blast'
'TRCK' (Track number/Position in set)               '6'
'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', 'female fronted metal', 'symphonic metal', '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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.29 dB'
'TXXX:replaygain_track_peak'                        '0.274858'

========================== row from database ==========================
                                              'id'  1292777
                                            'path'  /data/Music/Bulk/00poprockelectronic/Sirenia/Sirenia - Nine Destinies And A Downfall/Sirenia - 06 - The Other Side.mp3
                                         'working'  None
                                         'bitrate'  255
                                    'duration_sec'  235
                                           'genre'  eid-metal-doom or gothic
                                        'filesize'  7512879
                                           'mtime'  1620310516
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 06 eid metal doom or gothic
                                      'tag_artist'  Sirenia
                                     'tag_release'  Nine Destinies And A Downfall
                                       'tag_title'  The Other Side
                                             'bpm'  111.578
                                    'search_title'  'other':2 'side':3 'the':1
                                   'search_artist'  'sirenia':1
                                  'search_release'  'a':4 'and':3 'destinies':2 'downfall':5 'nine':1
                                     'search_rest'  '00poprockelectronic':1 'doom':4 'eid':2 'gothic':6 'metal':3 'or':5
                                    'search_combo'  '00poprockelectronic':10 'a':8C 'and':7C 'destinies':6C 'doom':13 'downfall':9C 'eid':11 'gothic':15 'metal':12 'nine':5C 'or':14 'other':2A 'side':3A 'sirenia':4B 'the':1A
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', '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-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['metal', 'gothic', 'female fronted metal', 'symphonic metal', 'gothic metal']
                                        'tag_date'  2007
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620310515.9739406  (2021-05-06 16:15:15)
                             'size'  7512879