======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '146'
                                          'artist'  'Helen Kane'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "That's My Weakness Now (2.26) 1954"
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['20s', 'roaring 20s', 'oldies', 'jazz', 'female vocalists', 'betty boop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1940'
                                        'comments'  ''
                                           'genre'  'set-th-incharacter'
                                             'bpm'  '144.748'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '144.748'
'TCON' (Content type, a.k.a. Genre)                 'set-th-incharacter'
'TDRC' (Recording time)                             '1940'
'TIT2' (Title/songname/content description)         "That's My Weakness Now (2.26) 1954"
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Helen Kane'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['20s', 'roaring 20s', 'oldies', 'jazz', 'female vocalists', 'betty boop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.04 dB'
'TXXX:replaygain_track_peak'                        '0.398877'

========================== row from database ==========================
                                              'id'  1519665
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Helen Kane - misc/Helen Kane - That_s My Weakness Now (2.26) 1954.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  146
                                           'genre'  set-th-incharacter
                                        'filesize'  2342246
                                           'mtime'  1620343051
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country misc That_s set th incharacter
                                      'tag_artist'  Helen Kane
                                     'tag_release'  None
                                       'tag_title'  That's My Weakness Now (2.26) 1954
                                             'bpm'  144.748
                                    'search_title'  '1954':10 '2':7 '226':9 '26':8 'my':4 'now':6 's':2 'that':1 'thats':3 'weakness':5
                                   'search_artist'  'helen':1 'kane':2
                                  'search_release'  
                                     'search_rest'  'country':4 'exotica':2 'incharacter':10 'jazz':1 'misc':5 'oldies':3 's':7 'set':8 'th':9 'that':6
                                    'search_combo'  '1954':10A '2':7A '226':9A '26':8A 'country':16 'exotica':14 'helen':11B 'incharacter':22 'jazz':13 'kane':12B 'misc':17 'my':4A 'now':6A 'oldies':15 's':2A,19 'set':20 'th':21 'that':1A,18 'thats':3A 'weakness':5A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-1', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['20s', 'roaring 20s', 'oldies', 'jazz', 'female vocalists', 'betty boop']
                                        'tag_date'  1940
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343051.1881948  (2021-05-07 01:17:31)
                             'size'  2342246