======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '393'
                                          'artist'  'Captain Tractor'
                                     'text_people'  ''
                                         'release'  'Celebrity Traffic Jam'
                                           'title'  'Another Drinking Song'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['folk rock', 'rock', 'celtic rock', 'folk', 'canadian']"
                                     'discogstags'  "['folk rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'ifs-unsorted'
                                             'bpm'  '128.6'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:Cover Image'                                  type PictureType.COVER_FRONT (Cover (front)) b'Cover Image'
                                     
'POPM:\x01ÿþ3'                                      POPM(email='\x01ÿþ3', rating=153, count=0)
'TALB' (Album/Movie/Show title)                     'Celebrity Traffic Jam'
'TBPM' (BPM (beats per minute))                     '128.6'
'TCON' (Content type, a.k.a. Genre)                 'ifs-unsorted'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Another Drinking Song'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Captain Tractor'
'TPE2' (Band/orchestra/accompaniment)               'Captain Tractor'
'TRCK' (Track number/Position in set)               '13'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['folk rock', 'rock']
'TXXX:lastfmtags'                                   ['folk rock', 'rock', 'celtic rock', 'folk', 'canadian']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.44 dB'
'TXXX:replaygain_track_peak'                        '0.430679'

========================== row from database ==========================
                                              'id'  1288559
                                            'path'  /data/Music/Bulk/00poprockelectronic/Captain Tractor/Captain Tractor__MBZ;#Captain Tractor;#Celebrity Traffic Jam;#13;#Another Drinking Song.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  393
                                           'genre'  ifs-unsorted
                                        'filesize'  9482174
                                           'mtime'  1647276825
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Tractor__MBZ;#Captain Tractor;#Celebrity Jam;#13;#Another ifs unsorted
                                      'tag_artist'  Captain Tractor
                                     'tag_release'  Celebrity Traffic Jam
                                       'tag_title'  Another Drinking Song
                                             'bpm'  128.6
                                    'search_title'  'another':1 'drinking':2 'song':3
                                   'search_artist'  'captain':1 'tractor':2
                                  'search_release'  'celebrity':1 'jam':3 'traffic':2
                                     'search_rest'  '00poprockelectronic':1 '13':13,16 'another':14,17 'captain':4,7 'celebrity':9,11 'ifs':18 'jam':12,15 'mbz':3,6 'tractor':2,5,8,10 'unsorted':19
                                    'search_combo'  '00poprockelectronic':9 '13':21,24 'another':1A,22,25 'captain':4B,12,15 'celebrity':6C,17,19 'drinking':2A 'ifs':26 'jam':8C,20,23 'mbz':11,14 'song':3A 'tractor':5B,10,13,16,18 'traffic':7C 'unsorted':27
                                    'tag_tracknum'  13
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']
                                      'lastfmtags'  ['folk rock', 'rock', 'celtic rock', 'folk', 'canadian']
                                        'tag_date'  1995
                                     'discogstags'  ['folk rock', 'rock']

============================== file details ==============================
                                           'mtime'  1647276825.3255997  (2022-03-14 17:53:45)
                             'size'  9482174