======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '379'
                                          'artist'  'Prince'
                                     'text_people'  ''
                                         'release'  'Ultimate Prince Cd2'
                                           'title'  'Pop Life (Fresh Dance Mix)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', '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'  '04'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '99.371'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Ultimate Prince Cd2'
'TBPM' (BPM (beats per minute))                     '99.371'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'Pop Life (Fresh Dance Mix)'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Prince'
'TPE2' (Band/orchestra/accompaniment)               'Prince'
'TRCK' (Track number/Position in set)               '04'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'rock', 'pop', 'funk']
'TXXX:q-bass'                                       '1'
'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'                        '-0.12 dB'
'TXXX:replaygain_track_peak'                        '0.428063'

========================== row from database ==========================
                                              'id'  1316305
                                            'path'  /data/Music/Bulk/00poprockelectronic/1985 complete/226-D Prince - Pop Life (Fresh Dance Mix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  379
                                           'genre'  funk or soul
                                        'filesize'  15169959
                                           'mtime'  1628357917
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1985 complete 226 funk or soul
                                      'tag_artist'  Prince
                                     'tag_release'  Ultimate Prince Cd2
                                       'tag_title'  Pop Life (Fresh Dance Mix)
                                             'bpm'  99.371
                                    'search_title'  'dance':5 'fresh':3,4 'life':2 'mix':6,7 'pop':1
                                   'search_artist'  'prince':1
                                  'search_release'  'cd2':3 'prince':2 'ultimate':1
                                     'search_rest'  '00poprockelectronic':1 '1985':2 '226':4 'complete':3 'funk':5 'or':6 'soul':7
                                    'search_combo'  '00poprockelectronic':12 '1985':13 '226':15 'cd2':11C 'complete':14 'dance':5A 'fresh':3A,4A 'funk':16 'life':2A 'mix':6A,7A 'or':17 'pop':1A 'prince':8B,10C 'soul':18 'ultimate':9C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  10A
                                           '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-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['80s', 'rock', 'pop', 'funk']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357917.4570088  (2021-08-07 19:38:37)
                             'size'  15169959