======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '177'
                                          'artist'  'King Curtis'
                                     'text_people'  ''
                                         'release'  'Instant Soul'
                                           'title'  'Memphis Soul Stew'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-JZFKS-3', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-2', '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'  "['saxophone', 'jazz', 'rhythm and blues', 'soul', 'funk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '113.517'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Instant Soul'
'TBPM' (BPM (beats per minute))                     '113.517'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Memphis Soul Stew'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'King Curtis'
'TRCK' (Track number/Position in set)               '11'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['saxophone', 'jazz', 'rhythm and blues', 'soul', 'funk']
'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'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.24 dB'
'TXXX:replaygain_track_peak'                        '0.466969'

========================== row from database ==========================
                                              'id'  1309976
                                            'path'  /data/Music/Bulk/00poprockelectronic/King Curtis/King Curtis__Instant Soul__11 - Memphis Soul Stew.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  177
                                           'genre'  funk or soul
                                        'filesize'  4249165
                                           'mtime'  1628357929
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Curtis__Instant Soul__11 funk or soul
                                      'tag_artist'  King Curtis
                                     'tag_release'  Instant Soul
                                       'tag_title'  Memphis Soul Stew
                                             'bpm'  113.517
                                    'search_title'  'memphis':1 'soul':2 'stew':3
                                   'search_artist'  'curtis':2 'king':1
                                  'search_release'  'instant':1 'soul':2
                                     'search_rest'  '00poprockelectronic':1 '11':5 'curtis':2 'funk':6 'instant':3 'or':7 'soul':4,8
                                    'search_combo'  '00poprockelectronic':8 '11':12 'curtis':5B,9 'funk':13 'instant':6C,10 'king':4B 'memphis':1A 'or':14 'soul':2A,7C,11,15 'stew':3A
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['saxophone', 'jazz', 'rhythm and blues', 'soul', 'funk']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357928.995188  (2021-08-07 19:38:48)
                             'size'  4249165