======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '304'
                                          'artist'  'Foreigner'
                                     'text_people'  ''
                                         'release'  "Feel Like Makin' Love"
                                           'title'  'I Want To Know What Love Is'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'rock', 'hard rock', 'pop', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1984'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '145.163'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Feel Like Makin' Love"
'TBPM' (BPM (beats per minute))                     '145.163'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1984'
'TIT2' (Title/songname/content description)         'I Want To Know What Love Is'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Foreigner'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'rock', 'hard rock', 'pop', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.54 dB'
'TXXX:replaygain_track_peak'                        '0.607787'

========================== row from database ==========================
                                              'id'  1510719
                                            'path'  /data/Music/Bulk/00poprockelectronic/Foreigner/Foreigner__MBZ;#Foreigner;#Feel Like Makin_ Love;#03;#I Want To Know What Love Is.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  304
                                           'genre'  rock-cppex
                                        'filesize'  7315080
                                           'mtime'  1620737191
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Foreigner__MBZ;#Foreigner;#Feel Makin_ Love;#03;#I rock cppex
                                      'tag_artist'  Foreigner
                                     'tag_release'  Feel Like Makin' Love
                                       'tag_title'  I Want To Know What Love Is
                                             'bpm'  145.163
                                    'search_title'  'i':1 'is':7 'know':4 'love':6 'to':3 'want':2 'what':5
                                   'search_artist'  'foreigner':1
                                  'search_release'  'feel':1 'like':2 'love':5 'makin':3,4
                                     'search_rest'  '00poprockelectronic':1 '03':12,15 'cppex':18 'feel':5,9 'foreigner':2,4,6,8 'i':13,16 'love':11,14 'makin':10 'mbz':3,7 'rock':17
                                    'search_combo'  '00poprockelectronic':14 '03':25,28 'cppex':31 'feel':9C,18,22 'foreigner':8B,15,17,19,21 'i':1A,26,29 'is':7A 'know':4A 'like':10C 'love':6A,13C,24,27 'makin':11C,12C,23 'mbz':16,20 'rock':30 'to':3A 'want':2A 'what':5A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'rock', 'hard rock', 'pop', 'classic rock']
                                        'tag_date'  1984
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737190.8962383  (2021-05-11 14:46:30)
                             'size'  7315080