======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '1656'
                                          'artist'  'Shirley & Spinoza'
                                     'text_people'  ''
                                         'release'  'Shirley & Spinoza'
                                           'title'  'HalWillner WhatAFriendWeHaveInJesus revisited'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-1', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  "['eclectic', 'collage music', 'tape music', 'avant garde', 'oldies']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-pl-shirleyspinoza'
                                             'bpm'  '143.011'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Shirley & Spinoza'
'TBPM' (BPM (beats per minute))                     '143.011'
'TCON' (Content type, a.k.a. Genre)                 'set-pl-shirleyspinoza'
'TIT2' (Title/songname/content description)         'HalWillner WhatAFriendWeHaveInJesus revisited'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Shirley & Spinoza'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '135,202'
'TXXX:Mp3gain_undo'                                 '+003,+003,N'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:Sortunder'                                    'h'
'TXXX:lastfmtags'                                   ['eclectic', 'collage music', 'tape music', 'avant garde', 'oldies']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.87 dB'
'TXXX:replaygain_track_peak'                        '0.605818'

========================== row from database ==========================
                                              'id'  882137
                                            'path'  /data/Music/Bulk/sns/HalWillner_WhatAFriendWeHaveInJesus_revisited_0006.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  1656
                                           'genre'  set-pl-shirleyspinoza
                                        'filesize'  26511640
                                           'mtime'  1621044184
                                   'redo_metaread'  0
                                        'rest_str'   sns HalWillner_WhatAFriendWeHaveInJesus_revisited_0006 set pl shirleyspinoza
                                      'tag_artist'  Shirley & Spinoza
                                     'tag_release'  Shirley & Spinoza
                                       'tag_title'  HalWillner WhatAFriendWeHaveInJesus revisited
                                             'bpm'  143.011
                                    'search_title'  'afriend':7 'hal':4 'halwillner':1 'have':9 'in':10 'jesus':11 'revisited':3 'we':8 'what':6 'whatafriendwehaveinjesus':2 'willner':5
                                   'search_artist'  'shirley':1 'spinoza':2
                                  'search_release'  'shirley':1 'spinoza':2
                                     'search_rest'  '0006':5,18 'afriend':12 'hal':9 'halwillner':2 'have':14 'in':15 'jesus':16 'pl':7 'revisited':4,17 'set':6 'shirleyspinoza':8 'sns':1 'we':13 'what':11 'whatafriendwehaveinjesus':3 'willner':10
                                    'search_combo'  '0006':20,33 'afriend':7A,27 'hal':4A,24 'halwillner':1A,17 'have':9A,29 'in':10A,30 'jesus':11A,31 'pl':22 'revisited':3A,19,32 'set':21 'shirley':12B,14C 'shirleyspinoza':23 'sns':16 'spinoza':13B,15C 'we':8A,28 'what':6A,26 'whatafriendwehaveinjesus':2A,18 'willner':5A,25
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['eclectic', 'collage music', 'tape music', 'avant garde', 'oldies']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621044184.4452062  (2021-05-15 04:03:04)
                             'size'  26511640