======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '152'
                                          'artist'  'Don Caballero'
                                     'text_people'  ''
                                         'release'  'American Don'
                                           'title'  'You drink a lot of coffee for a teenager'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-3', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['math rock', 'instrumental', 'progressive rock', 'post rock', 'experimental']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '9'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'rock-unsorted;set-pl-sced'
                                             'bpm'  '88.284'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 000011D5 00001472 00003EA5 00006EB7 0001FBE7 0001FBE7 00007182 00007018 '
 '0001FC15 0001FBE7')
'TALB' (Album/Movie/Show title)                     'American Don'
'TBPM' (BPM (beats per minute))                     '88.284'
'TCON' (Content type, a.k.a. Genre)                 ['rock-unsorted', 'set-pl-sced']
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'You drink a lot of coffee for a teenager'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Don Caballero'
'TPE2' (Band/orchestra/accompaniment)               'Don Caballero'
'TRCK' (Track number/Position in set)               '4/9'
'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'                                   ['math rock', 'instrumental', 'progressive rock', 'post rock', 'experimental']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.55 dB'
'TXXX:replaygain_track_peak'                        '0.288030'

========================== row from database ==========================
                                              'id'  1291977
                                            'path'  /data/Music/Bulk/00poprockelectronic/Don Caballero/[2000] American Don/04 You drink a lot of coffee for a teenager.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  152
                                           'genre'  rock-unsorted;set-pl-sced
                                        'filesize'  4910361
                                           'mtime'  1620389568
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic [2000] 04 rock unsorted;set pl sced
                                      'tag_artist'  Don Caballero
                                     'tag_release'  American Don
                                       'tag_title'  You drink a lot of coffee for a teenager
                                             'bpm'  88.284
                                    'search_title'  'a':3 'coffee':6 'drink':2 'for':7 'lot':4 'of':5 'teenager':8 'you':1
                                   'search_artist'  'caballero':2 'don':1
                                  'search_release'  'american':1 'don':2
                                     'search_rest'  '00poprockelectronic':1 '2000':2,3 'pl':9 'rock':4 'sced':10 'set':6,8 'unsorted':5,7
                                    'search_combo'  '00poprockelectronic':13 '2000':14,15 'a':3A 'american':11C 'caballero':10B 'coffee':6A 'don':9B,12C 'drink':2A 'for':7A 'lot':4A 'of':5A 'pl':21 'rock':16 'sced':22 'set':18,20 'teenager':8A 'unsorted':17,19 'you':1A
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['math rock', 'instrumental', 'progressive rock', 'post rock', 'experimental']
                                        'tag_date'  2000
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620389567.7225015  (2021-05-07 14:12:47)
                             'size'  4910361