======================== unified (from filesystem) ========================
                                         'bitrate'  '176.382'
                                        'duration'  '106'
                                          'artist'  'Frank Zappa'
                                     'text_people'  ''
                                         'release'  'Uncle Meat'
                                           'title'  'Electric Aunt Jemima'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-2', 'Q-OLDST-2', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['classic rock', 'jazz', 'progressive rock', 'experimental', 'rock']"
                                     'discogstags'  "['jazz', 'rock', 'avantgarde', 'parody', 'fusion']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-experimental'
                                             'bpm'  '111.886'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Uncle Meat'
'TBPM' (BPM (beats per minute))                     '111.886'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-experimental'
'TDRC' (Recording time)                             '1969'
'TIT2' (Title/songname/content description)         'Electric Aunt Jemima'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Frank Zappa'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['jazz', 'rock', 'avantgarde', 'parody', 'fusion']
'TXXX:lastfmtags'                                   ['classic rock', 'jazz', 'progressive rock', 'experimental', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.61 dB'
'TXXX:replaygain_track_peak'                        '0.796924'

========================== row from database ==========================
                                              'id'  471609
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Frank Zappa/1969 - Uncle Meat/12 - Electric Aunt Jemima.mp3
                                         'working'  None
                                         'bitrate'  176
                                    'duration_sec'  106
                                           'genre'  ifs-songwriter-experimental
                                        'filesize'  2349080
                                           'mtime'  1636400798
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 1969 12 ifs songwriter experimental
                                      'tag_artist'  Frank Zappa
                                     'tag_release'  Uncle Meat
                                       'tag_title'  Electric Aunt Jemima
                                             'bpm'  111.886
                                    'search_title'  'aunt':2 'electric':1 'jemima':3
                                   'search_artist'  'frank':1 'zappa':2
                                  'search_release'  'meat':2 'uncle':1
                                     'search_rest'  '00singer':1 '1969':4 'eos':3 'experimental':6 'ifs':5 'songwriter':2
                                    'search_combo'  '00singer':8 '1969':11 'aunt':2A 'electric':1A 'eos':10 'experimental':13 'frank':4B 'ifs':12 'jemima':3A 'meat':7C 'songwriter':9 'uncle':6C 'zappa':5B
                                    'tag_tracknum'  12
                                      '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-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-2', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['classic rock', 'jazz', 'progressive rock', 'experimental', 'rock']
                                        'tag_date'  1969
                                     'discogstags'  ['jazz', 'rock', 'avantgarde', 'parody', 'fusion']

============================== file details ==============================
                                           'mtime'  1636400798.262588  (2021-11-08 20:46:38)
                             'size'  2349080