======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '239'
                                          'artist'  'Yusef Lateef'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  ''
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-4', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['fusion', 'jazz', 'saxophone', 'experimental', 'flute']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-newer-experimental or free'
                                             'bpm'  '143.5'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '143.5'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-newer-experimental or free'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Yusef Lateef'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '4'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['fusion', 'jazz', 'saxophone', 'experimental', 'flute']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.82 dB'
'TXXX:replaygain_track_peak'                        '0.540751'

========================== row from database ==========================
                                              'id'  791885
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/Lateef, Yusef/yusef lateef - jazz around the funk/Jazz Around the World - 09 - Yusef Lateef - Utopia.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  239
                                           'genre'  prerock-jb-jazz-newer-experimental or free
                                        'filesize'  3837867
                                           'mtime'  1620592751
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul Lateef, yusef lateef jazz around the funk Jazz Around the World 09 Utopia prerock jb jazz newer experimental or free
                                      'tag_artist'  Yusef Lateef
                                     'tag_release'  None
                                       'tag_title'  None
                                             'bpm'  143.5
                                    'search_title'  None
                                   'search_artist'  'lateef':2 'yusef':1
                                  'search_release'  
                                     'search_rest'  'around':8 'experimental':15 'free':17 'funk':2 'jazz':7 'jb':13 'lateef':4,5 'newer':14 'or':16 'prerock':12 'soul':3 'swing':1 'the':9 'utopia':11 'world':10 'yusef':6
                                    'search_combo'  'around':10 'experimental':17 'free':19 'funk':4 'jazz':9 'jb':15 'lateef':2B,6,7 'newer':16 'or':18 'prerock':14 'soul':5 'swing':3 'the':11 'utopia':13 'world':12 'yusef':1B,8
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-4', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-piano-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['fusion', 'jazz', 'saxophone', 'experimental', 'flute']
                                        'tag_date'  
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620592750.9958463  (2021-05-09 22:39:10)
                             'size'  3837867