======================== unified (from filesystem) ========================
                                         'bitrate'  '159.619'
                                        'duration'  '363'
                                          'artist'  'Ronnie Earl'
                                     'text_people'  ''
                                         'release'  'Blues Busters Vol. 2'
                                           'title'  'Baby Doll Blues'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', "
 "'q-play-2', 'Q-JZFKS-2', 'Q-OLDST-1', 'q-chart-1', 'q-drums-3', 'q-other-4', "
 "'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-2']")
                                      'lastfmtags'  "['blues', 'blues rock', 'guitar', 'jazz', 'classic blues']"
                                     'discogstags'  "['blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1992'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '145.895'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Blues Busters Vol. 2'
'TBPM' (BPM (beats per minute))                     '145.895'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1992'
'TIT2' (Title/songname/content description)         'Baby Doll Blues'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ronnie Earl'
'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:discogstags'                                  'blues'
'TXXX:lastfmtags'                                   ['blues', 'blues rock', 'guitar', 'jazz', 'classic blues']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.23 dB'
'TXXX:replaygain_track_peak'                        '0.436713'

========================== row from database ==========================
                                              'id'  790759
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Blues Busters, Vol. 2/Ronnie Earl - Baby Doll Blues.mp3
                                         'working'  None
                                         'bitrate'  159
                                    'duration_sec'  363
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  7255848
                                           'mtime'  1620528293
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Busters, prerock jb jazz unsorted
                                      'tag_artist'  Ronnie Earl
                                     'tag_release'  Blues Busters Vol. 2
                                       'tag_title'  Baby Doll Blues
                                             'bpm'  145.895
                                    'search_title'  'baby':1 'blues':3 'doll':2
                                   'search_artist'  'earl':2 'ronnie':1
                                  'search_release'  '2':5 'blues':1 'busters':2 'vol':3,4
                                     'search_rest'  'busters':5,6 'country':4 'exotica':2 'jazz':1 'jb':8 'oldies':3 'prerock':7 'unsorted':9
                                    'search_combo'  '2':10C 'baby':1A 'blues':3A,6C 'busters':7C,15,16 'country':14 'doll':2A 'earl':5B 'exotica':12 'jazz':11 'jb':18 'oldies':13 'prerock':17 'ronnie':4B 'unsorted':19 'vol':8C,9C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           '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-3', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['blues', 'blues rock', 'guitar', 'jazz', 'classic blues']
                                        'tag_date'  1992
                                     'discogstags'  ['blues']

============================== file details ==============================
                                           'mtime'  1620528292.5827827  (2021-05-09 04:44:52)
                             'size'  7255848