======================== unified (from filesystem) ========================
                                         'bitrate'  '32.0'
                                        'duration'  '65'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  'Commercial'
                                           'title'  'Life Buoy Health Soap'
                                           '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'  '0'
                                      'tracktotal'  ''
                                            'date'  '1948'
                                        'comments'  ''
                                           'genre'  'nonmusic-commercials;set-pl-mor'
                                             'bpm'  '127.044'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Commercial'
'TBPM' (BPM (beats per minute))                     '127.044'
'TCON' (Content type, a.k.a. Genre)                 ['nonmusic-commercials', 'set-pl-mor']
'TDRC' (Recording time)                             '1948'
'TIT2' (Title/songname/content description)         'Life Buoy Health Soap'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '65541'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TRCK' (Track number/Position in set)               '0'
'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'                        '+1.36 dB'
'TXXX:replaygain_track_peak'                        '0.479182'

========================== row from database ==========================
                                              'id'  957606
                                            'path'  /data/Music/Bulk/0nonmusic/00commercials-tv-radio-movietrailer/commercial_psa/1948 Life Buoy Health Soap.mp3
                                         'working'  None
                                         'bitrate'  32
                                    'duration_sec'  65
                                           'genre'  nonmusic-commercials;set-pl-mor
                                        'filesize'  264212
                                           'mtime'  1620524740
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 00commercials tv radio movietrailer commercial_psa 1948 nonmusic commercials;set pl mor
                                      'tag_artist'  [unknown]
                                     'tag_release'  Commercial
                                       'tag_title'  Life Buoy Health Soap
                                             'bpm'  127.044
                                    'search_title'  'buoy':2 'health':3 'life':1 'soap':4
                                   'search_artist'  'unknown':1,2
                                  'search_release'  'commercial':1
                                     'search_rest'  '00commercials':2 '0nonmusic':1 '1948':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':9 '0nonmusic':8 '1948':15 'buoy':2A 'commercial':7C,13 'commercials':17,19 'health':3A 'life':1A 'mor':22 'movietrailer':12 'nonmusic':16 'pl':21 'psa':14 'radio':11 'set':18,20 'soap':4A 'tv':10 'unknown':5B,6B
                                    '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'  1948
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524740.2094138  (2021-05-09 03:45:40)
                             'size'  264212