======================== unified (from filesystem) ========================
                                         'bitrate'  '171.213'
                                        'duration'  '234'
                                          'artist'  'Tower Of Power'
                                     'text_people'  ''
                                         'release'  'T.O.P.'
                                           'title'  'It All Comes Back'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-JZFKS-4', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['fusion', 'jazz', 'soul', 'funk', '7soul']"
                                     'discogstags'  "['funk / soul', 'soul', 'funk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '14'
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'funk or soul-funk'
                                             'bpm'  '98.072'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             'C50DDA0E'
'COMM:ID3v1 Comment:XXX'                            'C50DDA0E'
'TALB' (Album/Movie/Show title)                     'T.O.P.'
'TBPM' (BPM (beats per minute))                     '98.072'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul-funk'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'It All Comes Back'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Tower Of Power'
'TRCK' (Track number/Position in set)               '2/14'
'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'                                      '4'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['funk / soul', 'soul', 'funk']
'TXXX:lastfmtags'                                   ['fusion', 'jazz', 'soul', 'funk', '7soul']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.02 dB'
'TXXX:replaygain_track_peak'                        '0.562642'

========================== row from database ==========================
                                              'id'  782768
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Tower Of Power/T.O.P/Tower of Power - It all Comes Back - 02.mp3
                                         'working'  None
                                         'bitrate'  171
                                    'duration_sec'  234
                                           'genre'  funk or soul-funk
                                        'filesize'  5015424
                                           'mtime'  1620665558
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country of all 02 funk or soul funk
                                      'tag_artist'  Tower Of Power
                                     'tag_release'  T.O.P.
                                       'tag_title'  It All Comes Back
                                             'bpm'  98.072
                                    'search_title'  'all':2 'back':4 'comes':3 'it':1
                                   'search_artist'  'of':2 'power':3 'tower':1
                                  'search_release'  'o':2 'p':3 't':1 'top':4
                                     'search_rest'  'all':6 'country':4 'exotica':2 'funk':7 'jazz':1 'of':5 'oldies':3 'or':8 'soul':9
                                    'search_combo'  'all':2A,17 'back':4A 'comes':3A 'country':15 'exotica':13 'funk':18 'it':1A 'jazz':12 'o':9C 'of':6B,16 'oldies':14 'or':19 'p':10C 'power':7B 'soul':20 't':8C 'top':11C 'tower':5B
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-4', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['fusion', 'jazz', 'soul', 'funk', '7soul']
                                        'tag_date'  1993
                                     'discogstags'  ['funk / soul', 'soul', 'funk']

============================== file details ==============================
                                           'mtime'  1620665557.7692358  (2021-05-10 18:52:37)
                             'size'  5015424