======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '297'
                                          'artist'  'Canned Heat & John Lee Hooker'
                                     'text_people'  ''
                                         'release'  "Hooker 'n Heat (disc 1)"
                                           'title'  'Drifter'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', "
 "'q-play-3', 'Q-JZFKS-3', 'Q-OLDST-1', 'q-chart-2', 'q-drums-3', 'q-other-4', "
 "'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-2']")
                                      'lastfmtags'  "['blues', 'blues rock', 'classic rock', 'rock', 'electric blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues'
                                             'bpm'  '140.141'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Hooker 'n Heat (disc 1)"
'TBPM' (BPM (beats per minute))                     '140.141'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-blues'
'TIT2' (Title/songname/content description)         'Drifter'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Canned Heat & John Lee Hooker'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['blues', 'blues rock', 'classic rock', 'rock', 'electric blues']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.21 dB'
'TXXX:replaygain_track_peak'                        '0.635157'

========================== row from database ==========================
                                              'id'  1290606
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Canned Heat__cifs3971.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  297
                                           'genre'  prerock-jb-blues
                                        'filesize'  5944185
                                           'mtime'  1620403811
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Heat__cifs3971 prerock jb blues
                                      'tag_artist'  Canned Heat & John Lee Hooker
                                     'tag_release'  Hooker 'n Heat (disc 1)
                                       'tag_title'  Drifter
                                             'bpm'  140.141
                                    'search_title'  'drifter':1
                                   'search_artist'  'canned':1 'heat':2 'hooker':5 'john':3 'lee':4
                                  'search_release'  '1':7,8 'disc':5,6 'heat':4 'hooker':1 'n':2,3
                                     'search_rest'  '00poprockelectronic':1 'blues':11 'cifs3971':8 'files':5,6 'heat':7 'jb':10 'loose':3,4 'prerock':9 'unsorted':2
                                    'search_combo'  '00poprockelectronic':15 '1':13C,14C 'blues':25 'canned':2B 'cifs3971':22 'disc':11C,12C 'drifter':1A 'files':19,20 'heat':3B,10C,21 'hooker':6B,7C 'jb':24 'john':4B 'lee':5B 'loose':17,18 'n':8C,9C 'prerock':23 'unsorted':16
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'blues rock', 'classic rock', 'rock', 'electric blues']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620403810.9933696  (2021-05-07 18:10:10)
                             'size'  5944185