======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '180'
                                          'artist'  'Warren Barker'
                                     'text_people'  ''
                                         'release'  '77 Sunset Strip'
                                           'title'  "Late At Bailey's Pad"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['intrumental', 'arranger', 'exotica', 'oldies', 'easy listening']"
                                     'discogstags'  "['soundtrack', 'space-age', 'jazz', 'pop', 'stage & screen']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '112.8'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '77 Sunset Strip'
'TBPM' (BPM (beats per minute))                     '112.8'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TDRC' (Recording time)                             '1959'
'TIT2' (Title/songname/content description)         "Late At Bailey's Pad"
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Warren Barker'
'TRCK' (Track number/Position in set)               '02'
'TXXX:Mp3gain_minmax'                               '088,180'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['soundtrack', 'space-age', 'jazz', 'pop', 'stage & screen']
'TXXX:lastfmtags'                                   ['intrumental', 'arranger', 'exotica', 'oldies', 'easy listening']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.39 dB'
'TXXX:replaygain_track_peak'                        '0.888919'

========================== row from database ==========================
                                              'id'  1506236
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/77 Sunset Strip (Warren Barker)/02 - Late At Bailey_s Pad.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  180
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  4341493
                                           'mtime'  1620528070
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country (Warren Barker) 02 Bailey_s prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  Warren Barker
                                     'tag_release'  77 Sunset Strip
                                       'tag_title'  Late At Bailey's Pad
                                             'bpm'  112.8
                                    'search_title'  'at':2 'bailey':3 'baileys':5 'late':1 'pad':6 's':4
                                   'search_artist'  'barker':2 'warren':1
                                  'search_release'  '77':1 'strip':3 'sunset':2
                                     'search_rest'  'bailey':9 'barker':7,8 'bossa':15 'country':4 'exotica':2 'jazz':1 'jb':12 'lounge':13 'oldies':3 'or':14 'prerock':11 's':10 'warren':5,6
                                    'search_combo'  '77':9C 'at':2A 'bailey':3A,20 'baileys':5A 'barker':8B,18,19 'bossa':26 'country':15 'exotica':13 'jazz':12 'jb':23 'late':1A 'lounge':24 'oldies':14 'or':25 'pad':6A 'prerock':22 's':4A,21 'strip':11C 'sunset':10C 'warren':7B,16,17
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['intrumental', 'arranger', 'exotica', 'oldies', 'easy listening']
                                        'tag_date'  1959
                                     'discogstags'  ['soundtrack', 'space-age', 'jazz', 'pop', 'stage & screen']

============================== file details ==============================
                                           'mtime'  1620528070.1342156  (2021-05-09 04:41:10)
                             'size'  4341493