======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '302'
                                          'artist'  'Prince'
                                     'text_people'  ''
                                         'release'  'Batman'
                                           'title'  'The Arms Of Orion'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-3', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-3', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['80s', 'rock', 'pop', 'funk']"
                                     'discogstags'  ("['soundtrack', 'house', 'pop rock', 'synth-pop', 'funk', 'electronic', "
 "'rock', 'funk / soul', 'stage & screen']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '00'
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '130.819'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'PCNT' (Play counter)                               PCNT(count=0)
'TALB' (Album/Movie/Show title)                     'Batman'
'TBPM' (BPM (beats per minute))                     '130.819'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDOR' (Original release time)                      '1990'
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         'The Arms Of Orion'
'TKEY' (Initial key)                                '10B'
'TLEN' (Length)                                     '302000'
'TPE1' (Lead performer(s)/Soloist(s))               'Prince'
'TRCK' (Track number/Position in set)               '00'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['soundtrack',
 'house',
 'pop rock',
 'synth-pop',
 'funk',
 'electronic',
 'rock',
 'funk / soul',
 'stage & screen']
'TXXX:lastfmtags'                                   ['80s', 'rock', 'pop', 'funk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.67 dB'
'TXXX:replaygain_track_peak'                        '0.753578'

========================== row from database ==========================
                                              'id'  782752
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Prince/03 - The Arms of Orion.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  302
                                           'genre'  loc-namerica-country
                                        'filesize'  4849536
                                           'mtime'  1621628370
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 03 of loc namerica country
                                      'tag_artist'  Prince
                                     'tag_release'  Batman
                                       'tag_title'  The Arms Of Orion
                                             'bpm'  130.819
                                    'search_title'  'arms':2 'of':3 'orion':4 'the':1
                                   'search_artist'  'prince':1
                                  'search_release'  'batman':1
                                     'search_rest'  'country':4 'exotica':2 'jazz':1 'loc':6 'namerica':7 'of':5 'oldies':3
                                    'search_combo'  'arms':2A 'batman':6C 'country':10 'exotica':8 'jazz':7 'loc':12 'namerica':13 'of':3A,11 'oldies':9 'orion':4A 'prince':5B 'the':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-1', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['80s', 'rock', 'pop', 'funk']
                                        'tag_date'  1990
                                     'discogstags'  ['soundtrack', 'house', 'pop rock', 'synth-pop', 'funk', 'electronic', 'rock', 'funk / soul', 'stage & screen']

============================== file details ==============================
                                           'mtime'  1621628369.6171315  (2021-05-21 22:19:29)
                             'size'  4849536