======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '167'
                                          'artist'  'James Brown'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'I Got You (i Feel Good)'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-JZFKS-3', "
 "'Q-UNU-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['rnb', 'blues', 'rhythm and blues', 'soul', 'funk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '121'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-pop-early-rnb'
                                             'bpm'  '122.659'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '122.659'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-rnb'
'TIT2' (Title/songname/content description)         'I Got You (i Feel Good)'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'James Brown'
'TRCK' (Track number/Position in set)               '121'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rnb', 'blues', 'rhythm and blues', 'soul', 'funk']
'TXXX:other'                                        '가인아 놀자 (밥송 085집)'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-7.58 dB'
'TXXX:replaygain_track_peak'                        '0.753735'

========================== row from database ==========================
                                              'id'  1319181
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/가인아 놀자 (밥송 085집) - ♬ 121 James Brown - I Got You (i Feel Good).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  167
                                           'genre'  rock-pop-early-rnb
                                        'filesize'  4020383
                                           'mtime'  1620736417
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 가인아 놀자 (밥송 085집) ♬ 121 rock pop early rnb
                                      'tag_artist'  James Brown
                                     'tag_release'  None
                                       'tag_title'  I Got You (i Feel Good)
                                             'bpm'  122.659
                                    'search_title'  'feel':5 'good':6,7 'got':2 'i':1,4 'you':3
                                   'search_artist'  'brown':2 'james':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '085집':15,16,17,18 '121':19 'early':22 'files':5,6 'loose':3,4 'pop':21 'rnb':23 'rock':20 'unsorted':2 '가인아':7,8 '놀자':9,10 '밥송':11,12,13,14
                                    'search_combo'  '00poprockelectronic':10 '085집':24,25,26,27 '121':28 'brown':9B 'early':31 'feel':5A 'files':14,15 'good':6A,7A 'got':2A 'i':1A,4A 'james':8B 'loose':12,13 'pop':30 'rnb':32 'rock':29 'unsorted':11 'you':3A '가인아':16,17 '놀자':18,19 '밥송':20,21,22,23
                                    'tag_tracknum'  121
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['rnb', 'blues', 'rhythm and blues', 'soul', 'funk']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736417.1048925  (2021-05-11 14:33:37)
                             'size'  4020383