======================== unified (from filesystem) ========================
                                         'bitrate'  '184.321'
                                        'duration'  '278'
                                          'artist'  'Prince'
                                     'text_people'  ''
                                         'release'  "Sign 'O' The Times (Disk 1)"
                                           'title'  'Housequake'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-3', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['80s', 'rock', 'pop', 'funk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '9'
                                            'date'  '1987'
                                        'comments'  ''
                                           'genre'  'funk or soul-funk-pop'
                                             'bpm'  '115.722'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             '77097209'
'COMM:ID3v1 Comment:XXX'                            '77097209'
'TALB' (Album/Movie/Show title)                     "Sign 'O' The Times (Disk 1)"
'TBPM' (BPM (beats per minute))                     '115.722'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul-funk-pop'
'TDRC' (Recording time)                             '1987'
'TIT2' (Title/songname/content description)         'Housequake'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Prince'
'TRCK' (Track number/Position in set)               '3/9'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.89, VBR 3, Stereo, High quality'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'rock', 'pop', 'funk']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.66 dB'
'TXXX:replaygain_track_peak'                        '0.492592'

========================== row from database ==========================
                                              'id'  1524037
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Prince/Sign _O_ The Times/Prince - 03 - Housequake.mp3
                                         'working'  None
                                         'bitrate'  184
                                    'duration_sec'  278
                                           'genre'  funk or soul-funk-pop
                                        'filesize'  6422410
                                           'mtime'  1620531312
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country _O_ 03 funk or soul funk pop
                                      'tag_artist'  Prince
                                     'tag_release'  Sign 'O' The Times (Disk 1)
                                       'tag_title'  Housequake
                                             'bpm'  115.722
                                    'search_title'  'housequake':1
                                   'search_artist'  'prince':1
                                  'search_release'  '1':8,9 'disk':6,7 'o':2,3 'sign':1 'the':4 'times':5
                                     'search_rest'  'country':4 'exotica':2 'funk':6 'jazz':1 'o':5 'oldies':3 'or':7 'pop':9 'soul':8
                                    'search_combo'  '1':10C,11C 'country':15 'disk':8C,9C 'exotica':13 'funk':17 'housequake':1A 'jazz':12 'o':4C,5C,16 'oldies':14 'or':18 'pop':20 'prince':2B 'sign':3C 'soul':19 'the':6C 'times':7C
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-1', 'Q-HAP-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['80s', 'rock', 'pop', 'funk']
                                        'tag_date'  1987
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620531311.984062  (2021-05-09 05:35:11)
                             'size'  6422410