======================== unified (from filesystem) ========================
                                         'bitrate'  '165.437'
                                        'duration'  '183'
                                          'artist'  'Prince'
                                     'text_people'  ''
                                         'release'  'The Hits / The B-Sides (CD 1)'
                                           'title'  'Soft and Wet'
                                           '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-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'rock', 'pop', 'funk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '18'
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'funk or soul-funk-pop'
                                             'bpm'  '115.4'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             'E711C312'
'TALB' (Album/Movie/Show title)                     'The Hits / The B-Sides (CD 1)'
'TBPM' (BPM (beats per minute))                     '115.4'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul-funk-pop'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'Soft and Wet'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Prince'
'TRCK' (Track number/Position in set)               '3/18'
'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'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.97 dB'
'TXXX:replaygain_track_peak'                        '0.694759'

========================== row from database ==========================
                                              'id'  1334812
                                            'path'  /data/Music/Bulk/00poprockelectronic/Prince/The Hits/Prince - Soft and Wet.mp3
                                         'working'  None
                                         'bitrate'  165
                                    'duration_sec'  183
                                           'genre'  funk or soul-funk-pop
                                        'filesize'  3789681
                                           'mtime'  1620571789
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic funk or soul funk pop
                                      'tag_artist'  Prince
                                     'tag_release'  The Hits / The B-Sides (CD 1)
                                       'tag_title'  Soft and Wet
                                             'bpm'  115.4
                                    'search_title'  'and':2 'soft':1 'wet':3
                                   'search_artist'  'prince':1
                                  'search_release'  '1':8,9 'b':3 'bsides':5 'cd':6,7 'hits':2 'sides':4 'the':1
                                     'search_rest'  '00poprockelectronic':1 'funk':2 'or':3 'pop':5 'soul':4
                                    'search_combo'  '00poprockelectronic':14 '1':12C,13C 'and':2A 'b':7C 'bsides':9C 'cd':10C,11C 'funk':15 'hits':6C 'or':16 'pop':18 'prince':4B 'sides':8C 'soft':1A 'soul':17 'the':5C 'wet':3A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', '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-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['80s', 'rock', 'pop', 'funk']
                                        'tag_date'  1993
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620571788.7703178  (2021-05-09 16:49:48)
                             'size'  3789681