======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '210'
                                          'artist'  'Tony Weston'
                                     'text_people'  ''
                                         'release'  'Tony Weston'
                                           'title'  'Sing, Sing a Song'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['campy', 'cabaret']"
                                     'discogstags'  "['pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '115.9'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'blog.wfmu.org'
'TALB' (Album/Movie/Show title)                     'Tony Weston'
'TBPM' (BPM (beats per minute))                     '115.9'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TIT2' (Title/songname/content description)         'Sing, Sing a Song'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Tony Weston'
'TRCK' (Track number/Position in set)               '07'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'pop'
'TXXX:lastfmtags'                                   ['campy', 'cabaret']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.21 dB'
'TXXX:replaygain_track_peak'                        '0.623554'

========================== row from database ==========================
                                              'id'  660146
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/10/297_07_Tony_Weston_-_Sing,_Sing_a_Song.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  210
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  5108585
                                           'mtime'  1620538371
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 10 297_07_Tony_Weston_ _Sing,_Sing_a_Song prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  Tony Weston
                                     'tag_release'  Tony Weston
                                       'tag_title'  Sing, Sing a Song
                                             'bpm'  115.9
                                    'search_title'  'a':3 'sing':1,2 'song':4
                                   'search_artist'  'tony':1 'weston':2
                                  'search_release'  'tony':1 'weston':2
                                     'search_rest'  '07':2 '297':1 'a':7,11 'bossa':19 'exotica':18 'jazz':15 'jb':14 'lounge':16 'or':17 'prerock':13 'sing':5,6,9,10 'song':8,12 'tony':3 'weston':4
                                    'search_combo'  '07':10 '297':9 'a':3A,15,19 'bossa':27 'exotica':26 'jazz':23 'jb':22 'lounge':24 'or':25 'prerock':21 'sing':1A,2A,13,14,17,18 'song':4A,16,20 'tony':5B,7C,11 'weston':6B,8C,12
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['campy', 'cabaret']
                                        'tag_date'  
                                     'discogstags'  ['pop']

============================== file details ==============================
                                           'mtime'  1620538371.3493526  (2021-05-09 07:32:51)
                             'size'  5108585