======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '148'
                                          'artist'  'Herb Alpert & The Tijuana Brass'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Casino Royale'
                                           'quals'  ("['Q-OLDST-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['jazz', 'easy listening', 'instrumental', 'trumpet', 'latin']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '142.910'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '142.910'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TIT2' (Title/songname/content description)         'Casino Royale'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Herb Alpert & The Tijuana Brass'
'TXXX:Mp3gain_minmax'                               '085,184'
'TXXX:Mp3gain_undo'                                 '+003,+003,N'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'easy listening', 'instrumental', 'trumpet', 'latin']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.90 dB'
'TXXX:replaygain_track_peak'                        '0.626526'

========================== row from database ==========================
                                              'id'  1287709
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Herb Alpert & The Tijuana Brass - Casino Royale.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  148
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  2371943
                                           'mtime'  1630249654
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  Herb Alpert & The Tijuana Brass
                                     'tag_release'  None
                                       'tag_title'  Casino Royale
                                             'bpm'  142.91
                                    'search_title'  'casino':1 'royale':2
                                   'search_artist'  'alpert':2 'brass':5 'herb':1 'the':3 'tijuana':4
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'bossa':13 'exotica':12 'files':5,6 'jazz':9 'jb':8 'loose':3,4 'lounge':10 'or':11 'prerock':7 'unsorted':2
                                    'search_combo'  '00poprockelectronic':8 'alpert':4B 'bossa':20 'brass':7B 'casino':1A 'exotica':19 'files':12,13 'herb':3B 'jazz':16 'jb':15 'loose':10,11 'lounge':17 'or':18 'prerock':14 'royale':2A 'the':5B 'tijuana':6B 'unsorted':9
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-4', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['jazz', 'easy listening', 'instrumental', 'trumpet', 'latin']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1630249654.1355324  (2021-08-29 17:07:34)
                             'size'  2371943