======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '282'
                                          'artist'  'King Crimson'
                                     'text_people'  ''
                                         'release'  'Discipline'
                                           'title'  'Elephant Talk'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock', 'progressive rock', 'progressive', 'experimental', 'classic rock']"
                                     'discogstags'  "['rock', 'prog rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'rock-cppex-experimental or noise;rock-cppex-progressive'
                                             'bpm'  '115.655'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Discipline'
'TBPM' (BPM (beats per minute))                     '115.655'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-experimental or noise', 'rock-cppex-progressive']
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Elephant Talk'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'King Crimson'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'prog rock']
'TXXX:lastfmtags'                                   ['rock', 'progressive rock', 'progressive', 'experimental', 'classic rock']
'TXXX:original release date'                        ['1981', '2004']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'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'                        '+0.88 dB'
'TXXX:replaygain_track_peak'                        '0.690591'

========================== row from database ==========================
                                              'id'  1306952
                                            'path'  /data/Music/Bulk/00poprockelectronic/King Crimson/MBZ;#King Crimson;#Discipline;#01;#Elephant Talk.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  282
                                           'genre'  rock-cppex-experimental or noise;rock-cppex-progressive
                                        'filesize'  5641753
                                           'mtime'  1636918100
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#King Crimson;#Discipline;#01;#Elephant rock cppex experimental or noise;rock cppex progressive
                                      'tag_artist'  King Crimson
                                     'tag_release'  Discipline
                                       'tag_title'  Elephant Talk
                                             'bpm'  115.655
                                    'search_title'  'elephant':1 'talk':2
                                   'search_artist'  'crimson':2 'king':1
                                  'search_release'  'discipline':1
                                     'search_rest'  '00poprockelectronic':1 '01':8,12 'cppex':15 'crimson':6,10 'discipline':7,11 'elephant':9,13 'experimental':16 'king':3,5 'mbz':2,4 'noise':18,20 'or':17 'progressive':22 'rock':14,19,21
                                    'search_combo'  '00poprockelectronic':6 '01':13,17 'cppex':20 'crimson':4B,11,15 'discipline':5C,12,16 'elephant':1A,14,18 'experimental':21 'king':3B,8,10 'mbz':7,9 'noise':23,25 'or':22 'progressive':27 'rock':19,24,26 'talk':2A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'progressive rock', 'progressive', 'experimental', 'classic rock']
                                        'tag_date'  2004
                                     'discogstags'  ['rock', 'prog rock']

============================== file details ==============================
                                           'mtime'  1636918099.5902443  (2021-11-14 20:28:19)
                             'size'  5641753