======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '316'
                                          'artist'  'Evol'
                                     'text_people'  ''
                                         'release'  'The Saga of The Horned King'
                                           'title'  'Prologue'
                                           'quals'  ("['Q-HAP-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['black metal', 'atmospheric black metal', 'medieval', 'experimental', "
 "'italian']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'eid-metal'
                                             'bpm'  '97.085'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Saga of The Horned King'
'TBPM' (BPM (beats per minute))                     '97.085'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal'
'TDRC' (Recording time)                             '1994'
'TIT2' (Title/songname/content description)         'Prologue'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Evol'
'TPE2' (Band/orchestra/accompaniment)               'Evol'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['black metal',
 'atmospheric black metal',
 'medieval',
 'experimental',
 'italian']
'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'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.01 dB'
'TXXX:replaygain_track_peak'                        '0.541996'

========================== row from database ==========================
                                              'id'  1342974
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Evol - Prologue - The Saga of The Horned King.mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  316
                                           'genre'  eid-metal
                                        'filesize'  4426010
                                           'mtime'  1620301838
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] eid metal
                                      'tag_artist'  Evol
                                     'tag_release'  The Saga of The Horned King
                                       'tag_title'  Prologue
                                             'bpm'  97.085
                                    'search_title'  'prologue':1
                                   'search_artist'  'evol':1
                                  'search_release'  'horned':4 'king':5 'of':3 'saga':2 'the':1
                                     'search_rest'  '00poprockelectronic':1 'eid':7 'files':5,6 'loose':3,4 'metal':8 'unsorted':2
                                    'search_combo'  '00poprockelectronic':8 'eid':14 'evol':2B 'files':12,13 'horned':6C 'king':7C 'loose':10,11 'metal':15 'of':5C 'prologue':1A 'saga':4C 'the':3C 'unsorted':9
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['black metal', 'atmospheric black metal', 'medieval', 'experimental', 'italian']
                                        'tag_date'  1994
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620301838.1954708  (2021-05-06 13:50:38)
                             'size'  4426010