======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '212'
                                          'artist'  'Lorn'
                                     'text_people'  ''
                                         'release'  'Vessel'
                                           'title'  'Anvil'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-2', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['black metal', 'electronic', 'idm', 'dubstep', 'electro']"
                                     'discogstags'  "['black metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '99.8'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Vessel'
'TBPM' (BPM (beats per minute))                     '99.8'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2015'
'TIT2' (Title/songname/content description)         'Anvil'
'TKEY' (Initial key)                                '11A'
'TLEN' (Length)                                     '212040'
'TPE1' (Lead performer(s)/Soloist(s))               'Lorn'
'TPE2' (Band/orchestra/accompaniment)               'Lorn'
'TPUB' (Publisher)                                  'Wednesday Sound'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['black metal', 'rock']
'TXXX:lastfmtags'                                   ['black metal', 'electronic', 'idm', 'dubstep', 'electro']
'TXXX:q-bass'                                       '4'
'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'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.75 dB'
'TXXX:replaygain_track_peak'                        '0.658040'

========================== row from database ==========================
                                              'id'  1387582
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Lorn - Anvil.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  212
                                           'genre'  electronic-unsorted
                                        'filesize'  8554924
                                           'mtime'  1620572875
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] electronic unsorted
                                      'tag_artist'  Lorn
                                     'tag_release'  Vessel
                                       'tag_title'  Anvil
                                             'bpm'  99.8
                                    'search_title'  'anvil':1
                                   'search_artist'  'lorn':1
                                  'search_release'  'vessel':1
                                     'search_rest'  '00poprockelectronic':1 'electronic':7 'files':5,6 'loose':3,4 'unsorted':2
                                    'search_combo'  '00poprockelectronic':4 'anvil':1A 'electronic':10 'files':8,9 'loose':6,7 'lorn':2B 'unsorted':5 'vessel':3C
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  11A
                                           '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-3', 'q-syn-3', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['black metal', 'electronic', 'idm', 'dubstep', 'electro']
                                        'tag_date'  2015
                                     'discogstags'  ['black metal', 'rock']

============================== file details ==============================
                                           'mtime'  1620572874.6468978  (2021-05-09 17:07:54)
                             'size'  8554924