======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '185'
                                          'artist'  'Lil Johnson'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Sam The Hot Dog Man'
                                           'quals'  ("['Q-OLDST-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'Q-PIANO-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'risque', 'classic blues', 'female vocalist', 'all']"
                                     'discogstags'  "['blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  '22'
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'set-th-novelty'
                                             'bpm'  '144.233'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 00000577 00000577 00005C85 00005C85 00004D0A 00004D0A 00006DB3 00006DB3 '
 '00008339 00008339')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000009CC 00000000007CC6A4 00000000 0043DA9D 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_1:eng'                            '51100916+308044+22+150+13017+26518+41834+67388+80012+94187+108359+121100+134259+149269+164124+175668+190300+204164+218071+230554+244312+255404+268921+282587+295708'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '15'
'TBPM' (BPM (beats per minute))                     '144.233'
'TCON' (Content type, a.k.a. Genre)                 'set-th-novelty'
'TDRC' (Recording time)                             '1980'
'TENC' (Encoded by)                                 'iTunes 8.0.2'
'TIT2' (Title/songname/content description)         'Sam The Hot Dog Man'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Lil Johnson'
'TRCK' (Track number/Position in set)               '15/22'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'blues'
'TXXX:lastfmtags'                                   ['blues', 'risque', 'classic blues', 'female vocalist', 'all']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.72 dB'
'TXXX:replaygain_track_peak'                        '0.508461'

========================== row from database ==========================
                                              'id'  771809
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Zimelis [Chow, Baby!]/Lil Johnson - Sam The Hot Dog Man.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  185
                                           'genre'  set-th-novelty
                                        'filesize'  4454022
                                           'mtime'  1620343085
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Zimelis [Chow, Baby!] set th novelty
                                      'tag_artist'  Lil Johnson
                                     'tag_release'  None
                                       'tag_title'  Sam The Hot Dog Man
                                             'bpm'  144.233
                                    'search_title'  'dog':4 'hot':3 'man':5 'sam':1 'the':2
                                   'search_artist'  'johnson':2 'lil':1
                                  'search_release'  
                                     'search_rest'  'baby':8,9 'chow':6,7 'country':4 'exotica':2 'jazz':1 'novelty':12 'oldies':3 'set':10 'th':11 'zimelis':5
                                    'search_combo'  'baby':15,16 'chow':13,14 'country':11 'dog':4A 'exotica':9 'hot':3A 'jazz':8 'johnson':7B 'lil':6B 'man':5A 'novelty':19 'oldies':10 'sam':1A 'set':17 'th':18 'the':2A 'zimelis':12
                                    'tag_tracknum'  15
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'risque', 'classic blues', 'female vocalist', 'all']
                                        'tag_date'  1980
                                     'discogstags'  ['blues']

============================== file details ==============================
                                           'mtime'  1620343085.4916792  (2021-05-07 01:18:05)
                             'size'  4454022