======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '103'
                                          'artist'  'Hugo Montenegro'
                                     'text_people'  ''
                                         'release'  'Afternoon Mood'
                                           'title'  'CM-146 Business'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', '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-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['instrumental', 'illstreet', 'somafm', 'soundtrack', 'lounge', 'easy "
 "listening']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '08'
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '138.6'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Afternoon Mood'
'TBPM' (BPM (beats per minute))                     '138.6'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         'CM-146 Business'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '103000'
'TPE1' (Lead performer(s)/Soloist(s))               'Industry 08'
'TPE2' (Band/orchestra/accompaniment)               'Hugo Montenegro'
'TRCK' (Track number/Position in set)               '08'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental',
 'illstreet',
 'somafm',
 'soundtrack',
 'lounge',
 'easy listening']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.61 dB'
'TXXX:replaygain_track_peak'                        '0.792041'

========================== row from database ==========================
                                              'id'  1284171
                                            'path'  /data/Music/Bulk/0playlists/Hugo Montenegro - AFTERNOON MOOD 75a/08. CM-146 Business - Industry 08.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  103
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  2604384
                                           'mtime'  1620541737
                                   'redo_metaread'  0
                                        'rest_str'   0playlists AFTERNOON MOOD 75a 08. Industry 08 prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  Hugo Montenegro
                                     'tag_release'  Afternoon Mood
                                       'tag_title'  CM-146 Business
                                             'bpm'  138.6
                                    'search_title'  '146':2 'business':4 'cm':1 'cm146':3
                                   'search_artist'  'hugo':1 'montenegro':2
                                  'search_release'  'afternoon':1 'mood':2
                                     'search_rest'  '08':5,6 '0playlists':1 '75a':4 'afternoon':2 'bossa':14 'exotica':13 'industry':7 'jazz':10 'jb':9 'lounge':11 'mood':3 'or':12 'prerock':8
                                    'search_combo'  '08':13,14 '0playlists':9 '146':2A '75a':12 'afternoon':7C,10 'bossa':22 'business':4A 'cm':1A 'cm146':3A 'exotica':21 'hugo':5B 'industry':15 'jazz':18 'jb':17 'lounge':19 'montenegro':6B 'mood':8C,11 'or':20 'prerock':16
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'illstreet', 'somafm', 'soundtrack', 'lounge', 'easy listening']
                                        'tag_date'  1970
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620541737.1051939  (2021-05-09 08:28:57)
                             'size'  2604384