======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '270'
                                          'artist'  'Soundgarden'
                                     'text_people'  ''
                                         'release'  'Rocks Off'
                                           'title'  'Black Hole Sun'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative rock', 'alternative', 'hard rock', 'grunge', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '20'
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'rock-gr-grunge'
                                             'bpm'  '106.141'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Love; Summer; Romantic; Chil'
'COMM:Songs-DB_Custom1:eng'                         '1990s'
'COMM:Songs-DB_Custom2:eng'                         'Nostalgia; Male Vocalists; Memories; Ballad'
'COMM:Songs-DB_Custom3:eng'                         'American; Seattle'
'COMM:Songs-DB_Occasion:eng'                        'Love; Summer; Romantic; Chillout'
'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'Rocks Off'
'TBPM' (BPM (beats per minute))                     '106.141'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-grunge'
'TDOR' (Original release time)                      '1994'
'TDRC' (Recording time)                             '1994'
'TIT2' (Title/songname/content description)         'Black Hole Sun'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Soundgarden'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '3/20'
'TSOP' (Performer sort order)                       'Soundgarden'
'TXXX:ALBUMARTISTSORT'                              'Various Artists'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '2484fbb9-4de8-479f-980a-0562da15888b'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '153c9281-268f-4cf3-8938-f5a4593e5df4'
'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'                                   ['alternative rock', 'alternative', 'hard rock', 'grunge', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.48 dB'
'TXXX:replaygain_track_peak'                        '0.395074'

========================== row from database ==========================
                                              'id'  1314474
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Soundgarden__MBZ;#Soundgarden;#Rocks Off;#03;#Black Hole Sun.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  270
                                           'genre'  rock-gr-grunge
                                        'filesize'  6505115
                                           'mtime'  1636903150
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Soundgarden__MBZ;#Soundgarden;#Rocks Off;#03;#Black rock gr grunge
                                      'tag_artist'  Soundgarden
                                     'tag_release'  Rocks Off
                                       'tag_title'  Black Hole Sun
                                             'bpm'  106.141
                                    'search_title'  'black':1 'hole':2 'sun':3
                                   'search_artist'  'soundgarden':1
                                  'search_release'  'off':2 'rocks':1
                                     'search_rest'  '00poprockelectronic':1 '03':16,19 'black':17,20 'files':5,6 'gr':22 'grunge':23 'loose':3,4 'mbz':8,12 'off':15,18 'rock':21 'rocks':10,14 'soundgarden':7,9,11,13 'unsorted':2
                                    'search_combo'  '00poprockelectronic':7 '03':22,25 'black':1A,23,26 'files':11,12 'gr':28 'grunge':29 'hole':2A 'loose':9,10 'mbz':14,18 'off':6C,21,24 'rock':27 'rocks':5C,16,20 'soundgarden':4B,13,15,17,19 'sun':3A 'unsorted':8
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['alternative rock', 'alternative', 'hard rock', 'grunge', 'rock']
                                        'tag_date'  1994
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636903149.7372568  (2021-11-14 16:19:09)
                             'size'  6505115