======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '55'
                                          'artist'  'B-Grade Film Radio Spots/Teasers'
                                     'text_people'  'Various'
                                         'release'  'B-Grade Film Radio Spots/Teasers'
                                           'title'  'Psycho'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', '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'
                                             'bpm'  '139.370'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 0000022E 0000022E 000033A6 000033A6 000001BC 000001BC 00006B93 00006B93 '
 '00009205 00009205')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000A08 0000000000254E68 00000000 0021C0D1 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '23+1490B5B9CD9746A5998BB96CC68547F4+5566316'
'TALB' (Album/Movie/Show title)                     'B-Grade Film Radio Spots/Teasers'
'TBPM' (BPM (beats per minute))                     '139.370'
'TCOM' (Composer)                                   'Various'
'TCON' (Content type, a.k.a. Genre)                 'nonmusic-commercials-trailers'
'TDRC' (Recording time)                             '1970'
'TENC' (Encoded by)                                 'iTunes v7.1.1'
'TIT2' (Title/songname/content description)         'Psycho'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'B-Grade Film Radio Spots/Teasers'
'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'                                       '1'
'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'                        '+2.04 dB'
'TXXX:replaygain_track_peak'                        '0.593910'

========================== row from database ==========================
                                              'id'  955725
                                            'path'  /data/Music/Bulk/0nonmusic/00commercials-tv-radio-movietrailer/trailers/Psycho spot 2.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  55
                                           'genre'  nonmusic-commercials-trailers
                                        'filesize'  2222670
                                           'mtime'  1620527973
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 00commercials tv radio movietrailer trailers spot 2 nonmusic commercials trailers
                                      'tag_artist'  B-Grade Film Radio Spots/Teasers
                                     'tag_release'  B-Grade Film Radio Spots/Teasers
                                       'tag_title'  Psycho
                                             'bpm'  139.37
                                    'search_title'  'psycho':1
                                   'search_artist'  'b':1 'bgrade':3 'film':4 'grade':2 'radio':5 'spots':6 'spotsteasers':8 'teasers':7
                                  'search_release'  'b':1 'bgrade':3 'film':4 'grade':2 'radio':5 'spots':6 'spotsteasers':8 'teasers':7
                                     'search_rest'  '00commercials':2 '0nonmusic':1 '2':8 'commercials':10 'movietrailer':5 'nonmusic':9 'radio':4 'spot':7 'trailers':6 'tv':3
                                    'search_combo'  '00commercials':19 '0nonmusic':18 '2':25 'b':2B,10C 'bgrade':4B,12C 'commercials':27 'film':5B,13C 'grade':3B,11C 'movietrailer':22 'nonmusic':26 'psycho':1A 'radio':6B,14C,21 'spot':24 'spots':7B,15C 'spotsteasers':9B,17C 'teasers':8B,16C 'trailers':23 'tv':20
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           '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-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1970
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527973.1068  (2021-05-09 04:39:33)
                             'size'  2222670