======================== unified (from filesystem) ========================
                                         'bitrate'  '262.424'
                                        'duration'  '227'
                                          'artist'  'Andy Rehfeldt'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Ke$ha - Die Young (Metal Version)'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-4', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['death metal', 'jazz', 'metal', 'cover', 'parody']"
                                     'discogstags'  ("['classical', 'jazz', 'contemporary', 'art rock', 'rock', 'jazz-rock', "
 "'experimental']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'set-th-novelty-styledcovers;set-cover or covered'
                                             'bpm'  '128.4'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '128.4'
'TCON' (Content type, a.k.a. Genre)                 ['set-th-novelty-styledcovers', 'set-cover or covered']
'TDRC' (Recording time)                             '2010'
'TIT2' (Title/songname/content description)         'Ke$ha - Die Young (Metal Version)'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Andy Rehfeldt'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf56.40.101'
'TXXX:COMPATIBLE_BRANDS'                            'iso6avc1mp41'
'TXXX:MAJOR_BRAND'                                  'dash'
'TXXX:MINOR_VERSION'                                '0'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '4'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['classical',
 'jazz',
 'contemporary',
 'art rock',
 'rock',
 'jazz-rock',
 'experimental']
'TXXX:lastfmtags'                                   ['death metal', 'jazz', 'metal', 'cover', 'parody']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.06 dB'
'TXXX:replaygain_track_peak'                        '0.451934'

========================== row from database ==========================
                                              'id'  974335
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/AndyRehfeldt/Metal/Ke$ha-Die Young(Metal Version)-BRxZvwrYkEw.mkv.mp3
                                         'working'  None
                                         'bitrate'  262
                                    'duration_sec'  227
                                           'genre'  set-th-novelty-styledcovers;set-cover or covered
                                        'filesize'  7457871
                                           'mtime'  1642256886
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm AndyRehfeldt Young(Metal BRxZvwrYkEw.mkv set th novelty styledcovers;set cover or covered
                                      'tag_artist'  Andy Rehfeldt
                                     'tag_release'  None
                                       'tag_title'  Ke$ha - Die Young (Metal Version)
                                             'bpm'  128.4
                                    'search_title'  'die':3 'ha':2 'ke':1 'metal':5,6 'version':7,8 'young':4
                                   'search_artist'  'andy':1 'rehfeldt':2
                                  'search_release'  
                                     'search_rest'  'andy':18 'andyrehfeldt':1 'brx':20 'brxzvwrykew':5 'brxzvwrykewmkv':7 'cover':15 'covered':17 'ew':23 'ewmkv':25 'metal':3 'mkv':6,24 'novelty':10 'or':16 'rehfeldt':19 'set':8,12,14 'styledcovers':11,13 'th':9 'yk':22 'young':2 'youngmetal':4 'zvwr':21
                                    'search_combo'  'andy':9B,28 'andyrehfeldt':11 'brx':30 'brxzvwrykew':15 'brxzvwrykewmkv':17 'cover':25 'covered':27 'die':3A 'ew':33 'ewmkv':35 'ha':2A 'ke':1A 'metal':5A,6A,13 'mkv':16,34 'novelty':20 'or':26 'rehfeldt':10B,29 'set':18,22,24 'styledcovers':21,23 'th':19 'version':7A,8A 'yk':32 'young':4A,12 'youngmetal':14 'zvwr':31
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HAP-2', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-4', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']
                                      'lastfmtags'  ['death metal', 'jazz', 'metal', 'cover', 'parody']
                                        'tag_date'  2010
                                     'discogstags'  ['classical', 'jazz', 'contemporary', 'art rock', 'rock', 'jazz-rock', 'experimental']

============================== file details ==============================
                                           'mtime'  1642256886.4356594  (2022-01-15 15:28:06)
                             'size'  7457871