======================== unified (from filesystem) ========================
                                         'bitrate'  '319.999'
                                        'duration'  '8'
                                          'artist'  'BOSS KHJ Hit Bound LA Radio Station Jingle.'
                                     'text_people'  ''
                                         'release'  'Psychedelic Promos Radio Spots Vol. 2'
                                           'title'  'BOSS KHJ Hit Bound LA Radio Station Jingle.'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', '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'
                                             'bpm'  '103.062'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Psychedelic Promos Radio Spots Vol. 2'
'TBPM' (BPM (beats per minute))                     '103.062'
'TCON' (Content type, a.k.a. Genre)                 'nonmusic-commercials'
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         'BOSS KHJ Hit Bound LA Radio Station Jingle.'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'BOSS KHJ Hit Bound LA Radio Station Jingle.'
'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:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'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'                        '-0.53 dB'
'TXXX:replaygain_track_peak'                        '0.490004'
'TXXX:tracknum'                                     '23'

========================== row from database ==========================
                                              'id'  483945
                                            'path'  /data/Music/Bulk/0nonmusic/PsychedelicPromosRadioSpotsVol.2/23. BOSS KHJ Hit Bound LA Radio Station Jingle..mp3
                                         'working'  None
                                         'bitrate'  322
                                    'duration_sec'  8
                                           'genre'  nonmusic-commercials
                                        'filesize'  354327
                                           'mtime'  1620525657
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic PsychedelicPromosRadioSpotsVol.2 23. nonmusic commercials
                                      'tag_artist'  BOSS KHJ Hit Bound LA Radio Station Jingle.
                                     'tag_release'  Psychedelic Promos Radio Spots Vol. 2
                                       'tag_title'  BOSS KHJ Hit Bound LA Radio Station Jingle.
                                             'bpm'  103.062
                                    'search_title'  'boss':1 'bound':4 'hit':3 'jingle':8,9 'khj':2 'la':5 'radio':6 'station':7
                                   'search_artist'  'boss':1 'bound':4 'hit':3 'jingle':8,9 'khj':2 'la':5 'radio':6 'station':7
                                  'search_release'  '2':7 'promos':2 'psychedelic':1 'radio':3 'spots':4 'vol':5,6
                                     'search_rest'  '0nonmusic':1 '2':3,14 '23':5,6 'commercials':8 'nonmusic':7 'promos':10 'psychedelic':9 'psychedelicpromosradiospotsvol':2 'psychedelicpromosradiospotsvol2':4 'radio':11 'spots':12 'vol':13 'vol2':15
                                    'search_combo'  '0nonmusic':26 '2':25C,28,39 '23':30,31 'boss':1A,10B 'bound':4A,13B 'commercials':33 'hit':3A,12B 'jingle':8A,9A,17B,18B 'khj':2A,11B 'la':5A,14B 'nonmusic':32 'promos':20C,35 'psychedelic':19C,34 'psychedelicpromosradiospotsvol':27 'psychedelicpromosradiospotsvol2':29 'radio':6A,15B,21C,36 'spots':22C,37 'station':7A,16B 'vol':23C,24C,38 'vol2':40
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           '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-3', 'q-syn-2', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1970
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620525657.1441116  (2021-05-09 04:00:57)
                             'size'  354327