======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '51'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'SurviveAll MaximumProtection(General)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'nonmusic-commercials;set-pl-mor;set-pl-shirleyspinoza'
                                             'bpm'  '132.357'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '132.357'
'TCON' (Content type, a.k.a. Genre)                 ['nonmusic-commercials', 'set-pl-mor', 'set-pl-shirleyspinoza']
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         'SurviveAll MaximumProtection(General)'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TXXX:Mp3gain_minmax'                               '098,205'
'TXXX:Mp3gain_undo'                                 '+005,+005,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:Sortunder'                                    'commercials'
'TXXX:other'                                        '001'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.20 dB'
'TXXX:replaygain_track_peak'                        '0.416501'

========================== row from database ==========================
                                              'id'  958234
                                            'path'  /data/Music/Bulk/0nonmusic/00commercials-tv-radio-movietrailer/commercial_psa/SurviveAll_MaximumProtection(General)_0001.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  51
                                           'genre'  nonmusic-commercials;set-pl-mor;set-pl-shirleyspinoza
                                        'filesize'  829800
                                           'mtime'  1620525089
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 00commercials tv radio movietrailer commercial_psa SurviveAll_MaximumProtection(General)_0001 nonmusic commercials;set pl mor;set pl shirleyspinoza
                                      'tag_artist'  [unknown]
                                     'tag_release'  None
                                       'tag_title'  SurviveAll MaximumProtection(General)
                                             'bpm'  132.357
                                    'search_title'  'all':6 'general':3,9 'maximum':7 'maximumprotection':2 'maximumprotectiongeneral':4 'protection':8 'protectiongeneral':10 'survive':5 'surviveall':1
                                   'search_artist'  'unknown':1,2
                                  'search_release'  
                                     'search_rest'  '0001':11,14,31,33 '00commercials':2 '0nonmusic':1 'all':27 'commercial':6 'commercials':16,18 'general':10,30 'maximum':28 'maximumprotection':9 'maximumprotectiongeneral':13 'mor':21,23 'movietrailer':5 'nonmusic':15 'pl':20 'protection':29 'protectiongeneral':32 'psa':7 'radio':4 'set':17,19,22,24 'shirleyspinoza':25 'survive':26 'surviveall':8,12 'tv':3
                                    'search_combo'  '0001':23,26,43,45 '00commercials':14 '0nonmusic':13 'all':6A,39 'commercial':18 'commercials':28,30 'general':3A,9A,22,42 'maximum':7A,40 'maximumprotection':2A,21 'maximumprotectiongeneral':4A,25 'mor':33,35 'movietrailer':17 'nonmusic':27 'pl':32 'protection':8A,41 'protectiongeneral':10A,44 'psa':19 'radio':16 'set':29,31,34,36 'shirleyspinoza':37 'survive':5A,38 'surviveall':1A,20,24 'tv':15 'unknown':11B,12B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['mysterious', 'unknown', 'all', 'mistagged artist', 'rock']
                                        'tag_date'  1960
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620525088.6441658  (2021-05-09 03:51:28)
                             'size'  829800