======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '155'
                                          'artist'  'Los Picapiedras'
                                     'text_people'  ''
                                         'release'  'Tape No101 - And Her Name Is G-L-O-R-I-A (Part V)'
                                           'title'  'Gloria'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HAP-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['electric prunes cover', 'rock chileno', 'all', 'baila baila']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '06'
                                      'tracktotal'  ''
                                            'date'  '1966'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;set-pl-garagetapes'
                                             'bpm'  '117.5'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'COMM::XXX'                                         'http://garagetapes.blogspot.com/'
'TALB' (Album/Movie/Show title)                     'Tape No101 - And Her Name Is G-L-O-R-I-A (Part V)'
'TBPM' (BPM (beats per minute))                     '117.5'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'set-pl-garagetapes']
'TDRC' (Recording time)                             '1966'
'TIT2' (Title/songname/content description)         'Gloria'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Los Picapiedras'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '06'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:country'                                      'CL'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['electric prunes cover', 'rock chileno', 'all', 'baila baila']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+25.81 dB'
'TXXX:replaygain_track_peak'                        '0.034522'
'TXXX:tracknum'                                     '06'

========================== row from database ==========================
                                              'id'  505678
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT101/06 - Los Picapiedras - Gloria (1966 CL).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  155
                                           'genre'  rock-gr-garage;set-pl-garagetapes
                                        'filesize'  3737472
                                           'mtime'  1620384110
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT101 06 (1966 CL) rock gr garage;set pl garagetapes
                                      'tag_artist'  Los Picapiedras
                                     'tag_release'  Tape No101 - And Her Name Is G-L-O-R-I-A (Part V)
                                       'tag_title'  Gloria
                                             'bpm'  117.5
                                    'search_title'  'gloria':1
                                   'search_artist'  'los':1 'picapiedras':2
                                  'search_release'  'a':12 'and':3 'g':7 'gloria':13 'her':4 'i':11 'is':6 'l':8 'name':5 'no101':2 'o':9 'part':14,15 'r':10 'tape':1 'v':16,17
                                     'search_rest'  '1966':6,7 'blogspot':2 'cl':8,9 'com':3 'garage':12,14 'garagetapes':1,17 'garagetapesblogspotcom':4 'gr':11 'gt101':5 'pl':16 'rock':10 'set':13,15
                                    'search_combo'  '1966':26,27 'a':15C 'and':6C 'blogspot':22 'cl':28,29 'com':23 'g':10C 'garage':32,34 'garagetapes':21,37 'garagetapesblogspotcom':24 'gloria':1A,16C 'gr':31 'gt101':25 'her':7C 'i':14C 'is':9C 'l':11C 'los':2B 'name':8C 'no101':5C 'o':12C 'part':17C,18C 'picapiedras':3B 'pl':36 'r':13C 'rock':30 'set':33,35 'tape':4C 'v':19C,20C
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['electric prunes cover', 'rock chileno', 'all', 'baila baila']
                                        'tag_date'  1966
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620384110.0267212  (2021-05-07 12:41:50)
                             'size'  3737472