======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '160'
                                          'artist'  'Les Baxter'
                                     'text_people'  ''
                                         'release'  'Ultra-Lounge, Vol. 3: Space Capades'
                                           'title'  'Sabre Dance'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['lounge', 'space age pop', 'jazz', 'exotica', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '88.1'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Ultra-Lounge, Vol. 3: Space Capades'
'TBPM' (BPM (beats per minute))                     '88.1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TDRC' (Recording time)                             '1959'
'TIT2' (Title/songname/content description)         'Sabre Dance'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '160156'
'TPE1' (Lead performer(s)/Soloist(s))               'Les Baxter'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '11'
'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'                                   ['lounge', 'space age pop', 'jazz', 'exotica', 'easy listening']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.03 dB'
'TXXX:replaygain_track_peak'                        '0.577919'

========================== row from database ==========================
                                              'id'  746075
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/va - space age pop & mid century domestics (jingles & themes)/(1959) les baxter & his orchestra - sabre dance.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  160
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  3854002
                                           'mtime'  1620539324
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm va space age pop & mid century domestics (jingles & themes) (1959) les baxter & his orchestra sabre dance prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  Les Baxter
                                     'tag_release'  Ultra-Lounge, Vol. 3: Space Capades
                                       'tag_title'  Sabre Dance
                                             'bpm'  88.1
                                    'search_title'  'dance':2 'sabre':1
                                   'search_artist'  'baxter':2 'les':1
                                  'search_release'  '3':6,7 'capades':9 'lounge':2 'space':8 'ultra':1 'ultralounge':3 'vol':4,5
                                     'search_rest'  '1959':12,13 'age':3 'baxter':15 'bossa':26 'century':6 'dance':19 'domestics':7 'exotica':25 'his':16 'jazz':22 'jb':21 'jingles':8,9 'les':14 'lounge':23 'mid':5 'or':24 'orchestra':17 'pop':4 'prerock':20 'sabre':18 'space':2 'themes':10,11 'va':1
                                    'search_combo'  '1959':25,26 '3':10C,11C 'age':16 'baxter':4B,28 'bossa':39 'capades':13C 'century':19 'dance':2A,32 'domestics':20 'exotica':38 'his':29 'jazz':35 'jb':34 'jingles':21,22 'les':3B,27 'lounge':6C,36 'mid':18 'or':37 'orchestra':30 'pop':17 'prerock':33 'sabre':1A,31 'space':12C,15 'themes':23,24 'ultra':5C 'ultralounge':7C 'va':14 'vol':8C,9C
                                    'tag_tracknum'  11
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['lounge', 'space age pop', 'jazz', 'exotica', 'easy listening']
                                        'tag_date'  1959
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620539324.1415718  (2021-05-09 07:48:44)
                             'size'  3854002