======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '371'
                                          'artist'  'Sir Richard Bishop'
                                     'text_people'  ''
                                         'release'  'DECOMPOSITIONS'
                                           'title'  "Pickled Pig's Feet"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'guitar', 'experimental', 'folk', 'acoustic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '8'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic;mi-guitar-acoustic'
                                             'bpm'  '119.9'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'DECOMPOSITIONS'
'TBPM' (BPM (beats per minute))                     '119.9'
'TCON' (Content type, a.k.a. Genre)                 ['electronic', 'mi-guitar-acoustic']
'TIT2' (Title/songname/content description)         "Pickled Pig's Feet"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sir Richard Bishop'
'TRCK' (Track number/Position in set)               '2/8'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'guitar', 'experimental', 'folk', 'acoustic']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.28 dB'
'TXXX:replaygain_track_peak'                        '0.698921'

========================== row from database ==========================
                                              'id'  1509183
                                            'path'  /data/Music/Bulk/00poprockelectronic/00calmer/Sir Richard Bishop/Decompositions/2-Pickled Pig_s Feet.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  371
                                           'genre'  electronic;mi-guitar-acoustic
                                        'filesize'  11876352
                                           'mtime'  1636913392
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00calmer Decompositions 2 Pig_s electronic;mi guitar acoustic
                                      'tag_artist'  Sir Richard Bishop
                                     'tag_release'  DECOMPOSITIONS
                                       'tag_title'  Pickled Pig's Feet
                                             'bpm'  119.9
                                    'search_title'  'feet':5 'pickled':1 'pig':2 'pigs':4 's':3
                                   'search_artist'  'bishop':3 'richard':2 'sir':1
                                  'search_release'  'decompositions':1
                                     'search_rest'  '00calmer':2 '00poprockelectronic':1 '2':4 'acoustic':12 'decompositions':3 'electronic':7,9 'guitar':11 'mi':8,10 'pig':5 's':6
                                    'search_combo'  '00calmer':11 '00poprockelectronic':10 '2':13 'acoustic':21 'bishop':8B 'decompositions':9C,12 'electronic':16,18 'feet':5A 'guitar':20 'mi':17,19 'pickled':1A 'pig':2A,14 'pigs':4A 'richard':7B 's':3A,15 'sir':6B
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['instrumental', 'guitar', 'experimental', 'folk', 'acoustic']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636913392.1370392  (2021-11-14 19:09:52)
                             'size'  11876352