======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '276'
                                          'artist'  'The Blackbyrds'
                                     'text_people'  ''
                                         'release'  'Greatest Hits'
                                           'title'  'Rock Creek Park'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-3', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['jazz funk', 'jazz', 'soul', 'funk', '70s']"
                                     'discogstags'  "['jazz', 'funk / soul', 'soul', 'funk', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '146.000'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'Greatest Hits'
'TBPM' (BPM (beats per minute))                     '146.000'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Rock Creek Park'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Blackbyrds'
'TPE2' (Band/orchestra/accompaniment)               'The Blackbyrds'
'TRCK' (Track number/Position in set)               '5'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['jazz', 'funk / soul', 'soul', 'funk', 'easy listening']
'TXXX:lastfmtags'                                   ['jazz funk', 'jazz', 'soul', 'funk', '70s']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'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'                        '+0.87 dB'
'TXXX:replaygain_track_peak'                        '0.596369'

========================== row from database ==========================
                                              'id'  1304629
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/The Blackbyrds__MBZ;#The Blackbyrds;#Greatest Hits;#05;#Rock Creek Park.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  276
                                           'genre'  funk or soul
                                        'filesize'  6650872
                                           'mtime'  1628357955
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Blackbyrds__MBZ;#The Blackbyrds;#Greatest Hits;#05;#Rock funk or soul
                                      'tag_artist'  The Blackbyrds
                                     'tag_release'  Greatest Hits
                                       'tag_title'  Rock Creek Park
                                             'bpm'  146.0
                                    'search_title'  'creek':2 'park':3 'rock':1
                                   'search_artist'  'blackbyrds':2 'the':1
                                  'search_release'  'greatest':1 'hits':2
                                     'search_rest'  '00poprockelectronic':1 '05':18,21 'blackbyrds':7,10,13,15 'files':5,6 'funk':23 'greatest':14,16 'hits':17,20 'loose':3,4 'mbz':8,11 'or':24 'rock':19,22 'soul':25 'the':9,12 'unsorted':2
                                    'search_combo'  '00poprockelectronic':8 '05':25,28 'blackbyrds':5B,14,17,20,22 'creek':2A 'files':12,13 'funk':30 'greatest':6C,21,23 'hits':7C,24,27 'loose':10,11 'mbz':15,18 'or':31 'park':3A 'rock':1A,26,29 'soul':32 'the':4B,16,19 'unsorted':9
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['jazz funk', 'jazz', 'soul', 'funk', '70s']
                                        'tag_date'  2002
                                     'discogstags'  ['jazz', 'funk / soul', 'soul', 'funk', 'easy listening']

============================== file details ==============================
                                           'mtime'  1628357955.1314597  (2021-08-07 19:39:15)
                             'size'  6650872