======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '159'
                                          'artist'  'Big Brother and the Holding Company'
                                     'text_people'  ''
                                         'release'  'Big Brother & The Holding Comp'
                                           'title'  'Bye, Bye Baby'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['classic rock', 'psychedelic rock', 'blues', 'psychedelic', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1967'
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic;rock-cppex-classic'
                                             'bpm'  '140.335'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Big Brother & The Holding Comp'
'TBPM' (BPM (beats per minute))                     '140.335'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-psychedelic', 'rock-cppex-classic']
'TDRC' (Recording time)                             '1967'
'TIT2' (Title/songname/content description)         'Bye, Bye Baby'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Big Brother and the Holding Company'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['classic rock', 'psychedelic rock', 'blues', 'psychedelic', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.36 dB'
'TXXX:replaygain_track_peak'                        '0.616860'

========================== row from database ==========================
                                              'id'  1298776
                                            'path'  /data/Music/Bulk/00poprockelectronic/Big Brother and the Holding Company/Big Brother & The Holding Company/Big Brother & the Holding Company/MBZ;#Big Brot___g Company;#Big Brot___g Company;#01;#Bye, Bye Baby.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  159
                                           'genre'  rock-cppex-psychedelic;rock-cppex-classic
                                        'filesize'  3827116
                                           'mtime'  1636039099
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#Big Brot___g Company;#Big Brot___g Company;#01;#Bye, rock cppex psychedelic;rock cppex classic
                                      'tag_artist'  Big Brother and the Holding Company
                                     'tag_release'  Big Brother & The Holding Comp
                                       'tag_title'  Bye, Bye Baby
                                             'bpm'  140.335
                                    'search_title'  'baby':3 'bye':1,2
                                   'search_artist'  'and':3 'big':1 'brother':2 'company':6 'holding':5 'the':4
                                  'search_release'  'big':1 'brother':2 'comp':5 'holding':4 'the':3
                                     'search_rest'  '00poprockelectronic':1 '01':13,16 'big':3,5,9,11 'brot':6 'bye':14,17 'classic':24 'company':8,10,12,15 'cppex':19 'g':7 'mbz':2,4 'psychedelic':20,22 'rock':18,21,23
                                    'search_combo'  '00poprockelectronic':15 '01':27,30 'and':6B 'baby':3A 'big':4B,10C,17,19,23,25 'brot':20 'brother':5B,11C 'bye':1A,2A,28,31 'classic':38 'comp':14C 'company':9B,22,24,26,29 'cppex':33 'g':21 'holding':8B,13C 'mbz':16,18 'psychedelic':34,36 'rock':32,35,37 'the':7B,12C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', 'psychedelic rock', 'blues', 'psychedelic', 'rock']
                                        'tag_date'  1967
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636039099.1974368  (2021-11-04 16:18:19)
                             'size'  3827116