======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '157'
                                          'artist'  'The Moon is Blue'
                                     'text_people'  ''
                                         'release'  'Cocktail music for robots'
                                           'title'  'Frank Comstock'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-2', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '108.297'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Cocktail music for robots'
'TBPM' (BPM (beats per minute))                     '108.297'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TIT2' (Title/songname/content description)         'Frank Comstock'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Moon is Blue'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '3'
'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'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.48 dB'
'TXXX:replaygain_track_peak'                        '0.500790'
'TXXX:tracknum'                                     '21'

========================== row from database ==========================
                                              'id'  793644
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Lounge/Cocktail music for robots/21 The Moon is Blue-Frank Comstock.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  157
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  3790638
                                           'mtime'  1620532024
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Lounge 21 prerock jb jazz lounge exotica bossa
                                      'tag_artist'  The Moon is Blue
                                     'tag_release'  Cocktail music for robots
                                       'tag_title'  Frank Comstock
                                             'bpm'  108.297
                                    'search_title'  'comstock':2 'frank':1
                                   'search_artist'  'blue':4 'is':3 'moon':2 'the':1
                                  'search_release'  'cocktail':1 'for':3 'music':2 'robots':4
                                     'search_rest'  '21':6 'bossa':9 'country':4 'exotica':2 'jazz':1 'jb':8 'lounge':5 'oldies':3 'prerock':7
                                    'search_combo'  '21':16 'blue':6B 'bossa':19 'cocktail':7C 'comstock':2A 'country':14 'exotica':12 'for':9C 'frank':1A 'is':5B 'jazz':11 'jb':18 'lounge':15 'moon':4B 'music':8C 'oldies':13 'prerock':17 'robots':10C 'the':3B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620532023.6516638  (2021-05-09 05:47:03)
                             'size'  3790638