======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '121'
                                          'artist'  'Merle Kilgore'
                                     'text_people'  ''
                                         'release'  "Teenager'S Holiday"
                                           'title'  "There's No Food In This House"
                                           '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-chart-2', "
 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'rockabilly', 'oldies', 'rock and roll', '812 boppin']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '25'
                                      'tracktotal'  '30'
                                            'date'  '1991'
                                        'comments'  ''
                                           'genre'  'set-th-novelty'
                                             'bpm'  '146.000'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 000001C0 000001FD 000012D5 0000182B 0000C749 00005B6D 00005AEC 000063F4 '
 '00016129 000126CB')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000008C4 000000000051E82C 00000000 002C858E 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '30+CCA89E96EDD6F51DC1CF9B3AD786FBF2+882615'
'TALB' (Album/Movie/Show title)                     "Teenager'S Holiday"
'TBPM' (BPM (beats per minute))                     '146.000'
'TCON' (Content type, a.k.a. Genre)                 'set-th-novelty'
'TDRC' (Recording time)                             '1991'
'TENC' (Encoded by)                                 'iTunes 8.0.2'
'TIT2' (Title/songname/content description)         "There's No Food In This House"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Merle Kilgore'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '25/30'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['country', 'rockabilly', 'oldies', 'rock and roll', '812 boppin']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.49 dB'
'TXXX:replaygain_track_peak'                        '0.659225'

========================== row from database ==========================
                                              'id'  1498662
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Zimelis [Chow, Baby!]/Merle Kilgore - There_s No Food In This House.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  121
                                           'genre'  set-th-novelty
                                        'filesize'  2925030
                                           'mtime'  1620343088
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Zimelis [Chow, Baby!] There_s set th novelty
                                      'tag_artist'  Merle Kilgore
                                     'tag_release'  Teenager'S Holiday
                                       'tag_title'  There's No Food In This House
                                             'bpm'  146.0
                                    'search_title'  'food':5 'house':8 'in':6 'no':4 's':2 'there':1 'theres':3 'this':7
                                   'search_artist'  'kilgore':2 'merle':1
                                  'search_release'  'holiday':4 's':2 'teenager':1 'teenagers':3
                                     'search_rest'  'baby':8,9 'chow':6,7 'country':4 'exotica':2 'jazz':1 'novelty':14 'oldies':3 's':11 'set':12 'th':13 'there':10 'zimelis':5
                                    'search_combo'  'baby':22,23 'chow':20,21 'country':18 'exotica':16 'food':5A 'holiday':14C 'house':8A 'in':6A 'jazz':15 'kilgore':10B 'merle':9B 'no':4A 'novelty':28 'oldies':17 's':2A,12C,25 'set':26 'teenager':11C 'teenagers':13C 'th':27 'there':1A,24 'theres':3A 'this':7A 'zimelis':19
                                    'tag_tracknum'  25
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', '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-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['country', 'rockabilly', 'oldies', 'rock and roll', '812 boppin']
                                        'tag_date'  1991
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343087.996588  (2021-05-07 01:18:07)
                             'size'  2925030