======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '275'
                                          'artist'  'Ache'
                                     'text_people'  ''
                                         'release'  'Green Man'
                                           'title'  'Shadow Of A Gypsy'
                                           'quals'  ("['Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'q-syn-2', "
 "'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-2', "
 "'q-other-4', 'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-2']")
                                      'lastfmtags'  ("['progressive rock', 'art rock', 'denmark', 'symphonic prog', 'danish "
 "progressive rock']")
                                     'discogstags'  "['hardcore', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '04'
                                      'tracktotal'  ''
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '140.921'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Green Man'
'TBPM' (BPM (beats per minute))                     '140.921'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1969'
'TIT2' (Title/songname/content description)         'Shadow Of A Gypsy'
'TKEY' (Initial key)                                '10A'
'TLEN' (Length)                                     '275000'
'TMED' (Media type)                                 'LIN'
'TPE1' (Lead performer(s)/Soloist(s))               'Ache'
'TRCK' (Track number/Position in set)               '04'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['hardcore', 'rock']
'TXXX:lastfmtags'                                   ['progressive rock',
 'art rock',
 'denmark',
 'symphonic prog',
 'danish progressive rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.11 dB'
'TXXX:replaygain_track_peak'                        '0.559691'

========================== row from database ==========================
                                              'id'  1350322
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Ache - Shadow Of A Gypsy - Green Man.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  275
                                           'genre'  rock-cppex
                                        'filesize'  4407168
                                           'mtime'  1636038798
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] rock cppex
                                      'tag_artist'  Ache
                                     'tag_release'  Green Man
                                       'tag_title'  Shadow Of A Gypsy
                                             'bpm'  140.921
                                    'search_title'  'a':3 'gypsy':4 'of':2 'shadow':1
                                   'search_artist'  'ache':1
                                  'search_release'  'green':1 'man':2
                                     'search_rest'  '00poprockelectronic':1 'cppex':8 'files':5,6 'loose':3,4 'rock':7 'unsorted':2
                                    'search_combo'  '00poprockelectronic':8 'a':3A 'ache':5B 'cppex':15 'files':12,13 'green':6C 'gypsy':4A 'loose':10,11 'man':7C 'of':2A 'rock':14 'shadow':1A 'unsorted':9
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-4', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['progressive rock', 'art rock', 'denmark', 'symphonic prog', 'danish progressive rock']
                                        'tag_date'  1969
                                     'discogstags'  ['hardcore', 'rock']

============================== file details ==============================
                                           'mtime'  1636038797.6285968  (2021-11-04 16:13:17)
                             'size'  4407168