======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '370'
                                          'artist'  "Charly Antolini's Power Dozen"
                                     'text_people'  ''
                                         'release'  'Atomic Drums'
                                           'title'  'Marabuena'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', '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-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['funk', '70s', 'secretagent', 'jazz', 'easy listening']"
                                     'discogstags'  "['soul-jazz', 'funk / soul', 'jazz', 'big band', 'jazz-funk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '1972'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '131.2'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 00000675 00000316 00002164 0000125C 0000EAA5 0001D4EE 0000627B 00005BA7 '
 '0001ADC7 0001ADC7')
'COMM:iTunes_CDDB_1:eng'                            'F210E511+4328+17+150+17798+38046+55613+79289+107049+122370+140647+158369+178312+193632+208277+222731+247529+268619+291985+307914'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '5'
'TALB' (Album/Movie/Show title)                     'Atomic Drums'
'TBPM' (BPM (beats per minute))                     '131.2'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1972'
'TENC' (Encoded by)                                 'Itunes V1.1'
'TIT2' (Title/songname/content description)         'Marabuena'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               "Charly Antolini's Power Dozen"
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['soul-jazz', 'funk / soul', 'jazz', 'big band', 'jazz-funk']
'TXXX:lastfmtags'                                   ['funk', '70s', 'secretagent', 'jazz', 'easy listening']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'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'                        '-4.37 dB'
'TXXX:replaygain_track_peak'                        '0.825715'

========================== row from database ==========================
                                              'id'  1523654
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/EASY Instr 70_s/Charly Antolini_s Power Dozen - Marabuena.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  370
                                           'genre'  funk or soul
                                        'filesize'  8886990
                                           'mtime'  1636300938
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul EASY Instr 70_s Antolini_s funk or soul
                                      'tag_artist'  Charly Antolini's Power Dozen
                                     'tag_release'  Atomic Drums
                                       'tag_title'  Marabuena
                                             'bpm'  131.2
                                    'search_title'  'marabuena':1
                                   'search_artist'  'antolini':2 'antolinis':4 'charly':1 'dozen':6 'power':5 's':3
                                  'search_release'  'atomic':1 'drums':2
                                     'search_rest'  '70':6 'antolini':8 'easy':4 'funk':2 'instr':5 'or':10 's':7,9 'soul':3 'swing':1
                                    'search_combo'  '70':15 'antolini':3B,17 'antolinis':5B 'atomic':8C 'charly':2B 'dozen':7B 'drums':9C 'easy':13 'funk':11 'instr':14 'marabuena':1A 'or':19 'power':6B 's':4B,16,18 'soul':12 'swing':10
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', '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-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['funk', '70s', 'secretagent', 'jazz', 'easy listening']
                                        'tag_date'  1972
                                     'discogstags'  ['soul-jazz', 'funk / soul', 'jazz', 'big band', 'jazz-funk']

============================== file details ==============================
                                           'mtime'  1636300938.4018667  (2021-11-07 17:02:18)
                             'size'  8886990