======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '201'
                                          'artist'  'Harry James & His Orchestra'
                                     'text_people'  ''
                                         'release'  "I've Heard That Song Before - The Hits of Harry James - Disc 1"
                                           'title'  "Ain't Misbehavin'"
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 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
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                                      'lastfmtags'  "['instrumental', 'jazz', 'big band', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '21'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-o-big band'
                                             'bpm'  '135.004'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "I've Heard That Song Before - The Hits of Harry James - Disc 1"
'TBPM' (BPM (beats per minute))                     '135.004'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-o-big band'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         "Ain't Misbehavin'"
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Harry James & His Orchestra'
'TRCK' (Track number/Position in set)               '21'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'jazz', 'big band', 'swing']
'TXXX:q-bass'                                       '3'
'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'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.10 dB'
'TXXX:replaygain_track_peak'                        '0.630024'

========================== row from database ==========================
                                              'id'  1534235
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/I_ve Heard That Song Before - The Hits of Harry James - Disc 1/21 - Ain_t Misbehavin_.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  201
                                           'genre'  prerock-jb-jazz-o-big band
                                        'filesize'  8052261
                                           'mtime'  1620530182
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country I_ve 21 Ain_t Misbehavin_ prerock jb jazz big band
                                      'tag_artist'  Harry James & His Orchestra
                                     'tag_release'  I've Heard That Song Before - The Hits of Harry James - Disc 1
                                       'tag_title'  Ain't Misbehavin'
                                             'bpm'  135.004
                                    'search_title'  'ain':1 'aint':3 'misbehavin':4,5 't':2
                                   'search_artist'  'harry':1 'his':3 'james':2 'orchestra':4
                                  'search_release'  '1':14 'before':7 'disc':13 'harry':11 'heard':4 'hits':9 'i':1 'ive':3 'james':12 'of':10 'song':6 'that':5 'the':8 've':2
                                     'search_rest'  '21':7 'ain':8 'band':14 'big':13 'country':4 'exotica':2 'i':5 'jazz':1 'jb':12 'misbehavin':10 'oldies':3 'prerock':11 't':9 've':6
                                    'search_combo'  '1':23C '21':30 'ain':1A,31 'aint':3A 'band':37 'before':16C 'big':36 'country':27 'disc':22C 'exotica':25 'harry':6B,20C 'heard':13C 'his':8B 'hits':18C 'i':10C,28 'ive':12C 'james':7B,21C 'jazz':24 'jb':35 'misbehavin':4A,5A,33 'of':19C 'oldies':26 'orchestra':9B 'prerock':34 'song':15C 't':2A,32 'that':14C 'the':17C 've':11C,29
                                    'tag_tracknum'  21
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['instrumental', 'jazz', 'big band', 'swing']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620530182.1075914  (2021-05-09 05:16:22)
                             'size'  8052261