======================== unified (from filesystem) ========================
                                         'bitrate'  '32.0'
                                        'duration'  '16'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  'Commerical'
                                           'title'  'Glocoat Floor Wax'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1949'
                                        'comments'  ''
                                           'genre'  'nonmusic-commercials;set-pl-mor'
                                             'bpm'  '86.734'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Commerical'
'TBPM' (BPM (beats per minute))                     '86.734'
'TCON' (Content type, a.k.a. Genre)                 ['nonmusic-commercials', 'set-pl-mor']
'TDRC' (Recording time)                             '1949'
'TIT2' (Title/songname/content description)         'Glocoat Floor Wax'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'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'                        '+1.69 dB'
'TXXX:replaygain_track_peak'                        '0.304110'

========================== row from database ==========================
                                              'id'  957854
                                            'path'  /data/Music/Bulk/0nonmusic/00commercials-tv-radio-movietrailer/commercial_psa/1949 Glocoat Floor Wax.mp3
                                         'working'  None
                                         'bitrate'  32
                                    'duration_sec'  16
                                           'genre'  nonmusic-commercials;set-pl-mor
                                        'filesize'  67630
                                           'mtime'  1620524740
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 00commercials tv radio movietrailer commercial_psa 1949 nonmusic commercials;set pl mor
                                      'tag_artist'  [unknown]
                                     'tag_release'  Commerical
                                       'tag_title'  Glocoat Floor Wax
                                             'bpm'  86.734
                                    'search_title'  'floor':2 'glocoat':1 'wax':3
                                   'search_artist'  'unknown':1,2
                                  'search_release'  'commerical':1
                                     'search_rest'  '00commercials':2 '0nonmusic':1 '1949':8 'commercial':6 'commercials':10,12 'mor':15 'movietrailer':5 'nonmusic':9 'pl':14 'psa':7 'radio':4 'set':11,13 'tv':3
                                    'search_combo'  '00commercials':8 '0nonmusic':7 '1949':14 'commercial':12 'commercials':16,18 'commerical':6C 'floor':2A 'glocoat':1A 'mor':21 'movietrailer':11 'nonmusic':15 'pl':20 'psa':13 'radio':10 'set':17,19 'tv':9 'unknown':4B,5B 'wax':3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           '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-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['mysterious', 'unknown', 'all', 'mistagged artist', 'rock']
                                        'tag_date'  1949
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524740.427876  (2021-05-09 03:45:40)
                             'size'  67630