======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '149'
                                          'artist'  'Rita Chao'
                                     'text_people'  ''
                                         'release'  'Tape No34 - Real Girls In The Garage Land - Part II'
                                           'title'  'Crying In A Storm (196 - SG)'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-1', "
 "'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['all', 'the vitamin b12', 'pop', '60s', 'singapore']"
                                     'discogstags'  "['pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'set-cover or covered-styled;set-cover or covered'
                                             'bpm'  '143.2'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Tape No34 - Real Girls In The Garage Land - Part II'
'TBPM' (BPM (beats per minute))                     '143.2'
'TCON' (Content type, a.k.a. Genre)                 ['set-cover or covered-styled', 'set-cover or covered']
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'Crying In A Storm (196 - SG)'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Rita Chao'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'pop'
'TXXX:lastfmtags'                                   ['all', 'the vitamin b12', 'pop', '60s', 'singapore']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+18.33 dB'
'TXXX:replaygain_track_peak'                        '0.050284'
'TXXX:tracknum'                                     '02'

========================== row from database ==========================
                                              'id'  507374
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/garagetapes.blogspot.com/GT034 - Real Girls In The Garage Land - Part II/02 -  Rita Chao - Crying In A Storm (196 - SG).mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  149
                                           'genre'  set-cover or covered-styled;set-cover or covered
                                        'filesize'  2987844
                                           'mtime'  1620348153
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm garagetapes.blogspot.com GT034 02 set cover covered styled;set cover covered
                                      'tag_artist'  Rita Chao
                                     'tag_release'  Tape No34 - Real Girls In The Garage Land - Part II
                                       'tag_title'  Crying In A Storm (196 - SG)
                                             'bpm'  143.2
                                    'search_title'  '196':5,6 'a':3 'crying':1 'in':2 'sg':7,8 'storm':4
                                   'search_artist'  'chao':2 'rita':1
                                  'search_release'  'garage':7 'girls':4 'ii':10 'in':5 'land':8 'no34':2 'part':9 'real':3 'tape':1 'the':6
                                     'search_rest'  'blogspot':2 'com':3 'cover':7 'covered':8 'garagetapes':1 'garagetapesblogspotcom':4 'gt034':5 'set':6,10,12 'styled':9,11
                                    'search_combo'  '196':5A,6A 'a':3A 'blogspot':22 'chao':10B 'com':23 'cover':27 'covered':28 'crying':1A 'garage':17C 'garagetapes':21 'garagetapesblogspotcom':24 'girls':14C 'gt034':25 'ii':20C 'in':2A,15C 'land':18C 'no34':12C 'part':19C 'real':13C 'rita':9B 'set':26,30,32 'sg':7A,8A 'storm':4A 'styled':29,31 'tape':11C 'the':16C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  1A
                                           '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-1', 'q-other-4', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['all', 'the vitamin b12', 'pop', '60s', 'singapore']
                                        'tag_date'  1965
                                     'discogstags'  ['pop']

============================== file details ==============================
                                           'mtime'  1620348152.972599  (2021-05-07 02:42:32)
                             'size'  2987844