======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '457'
                                          'artist'  'OVA'
                                     'text_people'  ''
                                         'release'  'Epitonic'
                                           'title'  'Sublimation (Whos Lake Trout Edit)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['instrumental', 'melancholic', 'piano', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '86.7'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Epitonic'
'TBPM' (BPM (beats per minute))                     '86.7'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TIT2' (Title/songname/content description)         'Sublimation (Whos Lake Trout Edit)'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'OVA'
'TXXX:Mp3gain_minmax'                               '080,185'
'TXXX:Mp3gain_undo'                                 '+002,+002,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['instrumental', 'melancholic', 'piano', 'ambient']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.78 dB'
'TXXX:replaygain_track_peak'                        '0.744185'

========================== row from database ==========================
                                              'id'  454918
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Epitonic/OVA (5)/OVA - Sublimation (Whos Lake Trout Edit).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  457
                                           'genre'  electronic
                                        'filesize'  7324903
                                           'mtime'  1636912464
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm (5) electronic
                                      'tag_artist'  OVA
                                     'tag_release'  Epitonic
                                       'tag_title'  Sublimation (Whos Lake Trout Edit)
                                             'bpm'  86.7
                                    'search_title'  'edit':6,7 'lake':4 'sublimation':1 'trout':5 'whos':2,3
                                   'search_artist'  'ova':1
                                  'search_release'  'epitonic':1
                                     'search_rest'  '5':1,2 'electronic':3
                                    'search_combo'  '5':10,11 'edit':6A,7A 'electronic':12 'epitonic':9C 'lake':4A 'ova':8B 'sublimation':1A 'trout':5A 'whos':2A,3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'melancholic', 'piano', 'ambient']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636912464.2557988  (2021-11-14 18:54:24)
                             'size'  7324903