======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '197'
                                          'artist'  'Racoon'
                                     'text_people'  ''
                                         'release'  'Till Monkeys Fly'
                                           'title'  'By Your Side'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative rock', 'pop rock', 'rock', 'pop', 'dutch', 'alternative']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '16'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'rock-unsorted;loc-eur-netherlands'
                                             'bpm'  '95.8'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 000016B3 00000138 00008F01 00002BF9 0000D9A7 0000D5AC 0000831A 000083AA '
 '0000B4D0 00002558')
'COMM:iTunes_CDDB_IDs:eng'                          '16+7986EE17634D7715A7A333B6E23EEDE9+6020835'
'TALB' (Album/Movie/Show title)                     'Till Monkeys Fly'
'TBPM' (BPM (beats per minute))                     '95.8'
'TCON' (Content type, a.k.a. Genre)                 ['rock-unsorted', 'loc-eur-netherlands']
'TDRC' (Recording time)                             '2000'
'TENC' (Encoded by)                                 'iTunes v4.9.0.17'
'TIT2' (Title/songname/content description)         'By Your Side'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Racoon'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '2/16'
'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:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['alternative rock', 'pop rock', 'rock', 'pop', 'dutch', 'alternative']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.61 dB'
'TXXX:replaygain_track_peak'                        '0.587426'

========================== row from database ==========================
                                              'id'  1417694
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/Racoon/Till Monkeys Fly/02 By Your Side.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  197
                                           'genre'  rock-unsorted;loc-eur-netherlands
                                        'filesize'  3170091
                                           'mtime'  1621630027
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock 02 rock unsorted;loc eur netherlands
                                      'tag_artist'  Racoon
                                     'tag_release'  Till Monkeys Fly
                                       'tag_title'  By Your Side
                                             'bpm'  95.8
                                    'search_title'  'by':1 'side':3 'your':2
                                   'search_artist'  'racoon':1
                                  'search_release'  'fly':3 'monkeys':2 'till':1
                                     'search_rest'  '00poprockelectronic':1 'eur':9 'indierock':3 'loc':6,8 'netherlands':10 'poprock':2 'rock':4 'unsorted':5,7
                                    'search_combo'  '00poprockelectronic':8 'by':1A 'eur':16 'fly':7C 'indierock':10 'loc':13,15 'monkeys':6C 'netherlands':17 'poprock':9 'racoon':4B 'rock':11 'side':3A 'till':5C 'unsorted':12,14 'your':2A
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', '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-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'pop rock', 'rock', 'pop', 'dutch', 'alternative']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621630026.804172  (2021-05-21 22:47:06)
                             'size'  3170091