======================== unified (from filesystem) ========================
                                         'bitrate'  '220.38'
                                        'duration'  '136'
                                          'artist'  'Beck'
                                     'text_people'  ''
                                         'release'  "Chemtrails 7''"
                                           'title'  'Vampire Voltage No.6'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['indie', 'alternative', 'singer songwriter', 'indie rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '142.008'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'POPM:\x01ÿþ3'                                      POPM(email='\x01ÿþ3', rating=0, count=0)
'TALB' (Album/Movie/Show title)                     "Chemtrails 7''"
'TBPM' (BPM (beats per minute))                     '142.008'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Vampire Voltage No.6'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Beck'
'TPOS' (Part of a set)                              '1'
'TRCK' (Track number/Position in set)               '2'
'TXXX:ENSEMBLE'                                     'Beck'
'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:lastfmtags'                                   ['indie', 'alternative', 'singer songwriter', 'indie rock', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.55 dB'
'TXXX:replaygain_track_peak'                        '0.599494'

========================== row from database ==========================
                                              'id'  1294309
                                            'path'  /data/Music/Bulk/00poprockelectronic/B-Sides/0105 Beck - Vampire Voltage No.6 (B).mp3
                                         'working'  None
                                         'bitrate'  220
                                    'duration_sec'  136
                                           'genre'  rock-unsorted
                                        'filesize'  3800411
                                           'mtime'  1642097559
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Sides 0105 (B) rock unsorted
                                      'tag_artist'  Beck
                                     'tag_release'  Chemtrails 7''
                                       'tag_title'  Vampire Voltage No.6
                                             'bpm'  142.008
                                    'search_title'  '6':4 'no':3 'no6':5 'vampire':1 'voltage':2
                                   'search_artist'  'beck':1
                                  'search_release'  '7':2,3 'chemtrails':1
                                     'search_rest'  '00poprockelectronic':1 '0105':3 'b':4,5 'rock':6 'sides':2 'unsorted':7
                                    'search_combo'  '00poprockelectronic':10 '0105':12 '6':4A '7':8C,9C 'b':13,14 'beck':6B 'chemtrails':7C 'no':3A 'no6':5A 'rock':15 'sides':11 'unsorted':16 'vampire':1A 'voltage':2A
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-4', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']
                                      'lastfmtags'  ['indie', 'alternative', 'singer songwriter', 'indie rock', 'rock']
                                        'tag_date'  2008
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642097558.524905  (2022-01-13 19:12:38)
                             'size'  3800411