======================== unified (from filesystem) ========================
                                         'bitrate'  '224.0'
                                        'duration'  '201'
                                          'artist'  'Quincy Jones'
                                     'text_people'  'Al Ciner/Paulette McWilliams/Quincy Jones/Tom Bahler'
                                         'release'  'Mellow Madness'
                                           'title'  'Mellow Madness'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-2', 'Q-LOCALNESS-3', "
 "'Q-JZFKS-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['bossa nova', 'big band', 'jazz', 'soul', 'funk']"
                                     'discogstags'  "['jazz', 'funk / soul', 'soul-jazz', 'soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '129.6'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Mellow Madness'
'TBPM' (BPM (beats per minute))                     '129.6'
'TCOM' (Composer)                                   'Al Ciner/Paulette McWilliams/Quincy Jones/Tom Bahler'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'Mellow Madness'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Quincy Jones'
'TPE2' (Band/orchestra/accompaniment)               'Quincy Jones'
'TPUB' (Publisher)                                  'A&M'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['jazz', 'funk / soul', 'soul-jazz', 'soul']
'TXXX:lastfmtags'                                   ['bossa nova', 'big band', 'jazz', 'soul', 'funk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.40 dB'
'TXXX:replaygain_track_peak'                        '0.610605'

========================== row from database ==========================
                                              'id'  1369796
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/quincy jones - mellow madness/03-quincy_jones--mellow_madness.mp3
                                         'working'  None
                                         'bitrate'  224
                                    'duration_sec'  201
                                           'genre'  funk or soul
                                        'filesize'  5654193
                                           'mtime'  1621630005
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul quincy jones mellow madness 03 quincy_jones mellow_madness funk or soul
                                      'tag_artist'  Quincy Jones
                                     'tag_release'  Mellow Madness
                                       'tag_title'  Mellow Madness
                                             'bpm'  129.6
                                    'search_title'  'madness':2 'mellow':1
                                   'search_artist'  'jones':2 'quincy':1
                                  'search_release'  'madness':2 'mellow':1
                                     'search_rest'  'funk':2 'jones':5,9 'madness':7,11 'mellow':6,10 'or':12 'quincy':4,8 'soul':3 'swing':1
                                    'search_combo'  'funk':8 'jones':4B,11,15 'madness':2A,6C,13,17 'mellow':1A,5C,12,16 'or':18 'quincy':3B,10,14 'soul':9 'swing':7
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['bossa nova', 'big band', 'jazz', 'soul', 'funk']
                                        'tag_date'  1975
                                     'discogstags'  ['jazz', 'funk / soul', 'soul-jazz', 'soul']

============================== file details ==============================
                                           'mtime'  1621630004.6049104  (2021-05-21 22:46:44)
                             'size'  5654193