======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '200'
                                          'artist'  'Big Bad Voodoo Daddy'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Green Eyed Cat'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['big band', 'jazz', 'neo swing', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-soft-swing'
                                             'bpm'  '118.4'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'POPM:'                                             POPM(email='', rating=153, count=0)
'TBPM' (BPM (beats per minute))                     '118.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-soft-swing'
'TIT2' (Title/songname/content description)         'Green Eyed Cat'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Big Bad Voodoo Daddy'
'TRCK' (Track number/Position in set)               '1'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['big band', 'jazz', 'neo swing', 'swing']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.34 dB'
'TXXX:replaygain_track_peak'                        '0.417863'

========================== row from database ==========================
                                              'id'  721373
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/Big Bad Voodoo Daddy/big bad voodoo daddy - green eyed cat.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  200
                                           'genre'  prerock-jb-jazz-soft-swing
                                        'filesize'  3217687
                                           'mtime'  1620540611
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul big bad voodoo daddy green eyed cat prerock jb jazz soft swing
                                      'tag_artist'  Big Bad Voodoo Daddy
                                     'tag_release'  None
                                       'tag_title'  Green Eyed Cat
                                             'bpm'  118.4
                                    'search_title'  'cat':3 'eyed':2 'green':1
                                   'search_artist'  'bad':2 'big':1 'daddy':4 'voodoo':3
                                  'search_release'  
                                     'search_rest'  'bad':5 'big':4 'cat':10 'daddy':7 'eyed':9 'funk':2 'green':8 'jazz':13 'jb':12 'prerock':11 'soft':14 'soul':3 'swing':1 'voodoo':6
                                    'search_combo'  'bad':5B,12 'big':4B,11 'cat':3A,17 'daddy':7B,14 'eyed':2A,16 'funk':9 'green':1A,15 'jazz':20 'jb':19 'prerock':18 'soft':21 'soul':10 'swing':8 'voodoo':6B,13
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['big band', 'jazz', 'neo swing', 'swing']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620540610.9030054  (2021-05-09 08:10:10)
                             'size'  3217687