======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '30'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  'Trailers'
                                           'title'  'Zardoz'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-2', 'q-busy-2', 'q-grit-2', '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'  '1970'
                                        'comments'  ''
                                           'genre'  'nonmusic-commercials-trailers;set-pl-mor'
                                             'bpm'  '109.114'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:AverageLevel:¹\x11\x00\x00'                   PRIV(owner='AverageLevel', data=b'\xb9\x11\x00\x00')
'PRIV:PeakValue:ï~\x00\x00'                         PRIV(owner='PeakValue', data=b'\xef~\x00\x00')
'TALB' (Album/Movie/Show title)                     'Trailers'
'TBPM' (BPM (beats per minute))                     '109.114'
'TCON' (Content type, a.k.a. Genre)                 ['nonmusic-commercials-trailers', 'set-pl-mor']
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         'Zardoz'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '30000'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'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'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.93 dB'
'TXXX:replaygain_track_peak'                        '0.495845'

========================== row from database ==========================
                                              'id'  954769
                                            'path'  /data/Music/Bulk/0nonmusic/00commercials-tv-radio-movietrailer/trailers/zardoz_30.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  30
                                           'genre'  nonmusic-commercials-trailers;set-pl-mor
                                        'filesize'  496758
                                           'mtime'  1620528215
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 00commercials tv radio movietrailer trailers zardoz_30 nonmusic commercials trailers;set pl mor
                                      'tag_artist'  [unknown]
                                     'tag_release'  Trailers
                                       'tag_title'  Zardoz
                                             'bpm'  109.114
                                    'search_title'  'zardoz':1
                                   'search_artist'  'unknown':1,2
                                  'search_release'  'trailers':1
                                     'search_rest'  '00commercials':2 '0nonmusic':1 '30':8 'commercials':10 'mor':16 'movietrailer':5 'nonmusic':9 'pl':15 'radio':4 'set':12,14 'trailers':6,11,13 'tv':3 'zardoz':7
                                    'search_combo'  '00commercials':6 '0nonmusic':5 '30':12 'commercials':14 'mor':20 'movietrailer':9 'nonmusic':13 'pl':19 'radio':8 'set':16,18 'trailers':4C,10,15,17 'tv':7 'unknown':2B,3B 'zardoz':1A,11
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['mysterious', 'unknown', 'all', 'mistagged artist', 'rock']
                                        'tag_date'  1970
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528215.0455842  (2021-05-09 04:43:35)
                             'size'  496758