======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '56'
                                          'artist'  'The Zombies'
                                     'text_people'  ''
                                         'release'  'Psychedelic Promos Radio Spots Vol. 1'
                                           'title'  "'Time Of The Season' Promo Spot"
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                                      'lastfmtags'  "['pop', 'rock', 'psychedelic', '60s', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'nonmusic-commercials'
                                             'bpm'  '121.264'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Psychedelic Promos Radio Spots Vol. 1'
'TBPM' (BPM (beats per minute))                     '121.264'
'TCON' (Content type, a.k.a. Genre)                 'nonmusic-commercials'
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         "'Time Of The Season' Promo Spot"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Zombies'
'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:lastfmtags'                                   ['pop', 'rock', 'psychedelic', '60s', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                        '+2.29 dB'
'TXXX:replaygain_track_peak'                        '0.484060'
'TXXX:tracknum'                                     '51'

========================== row from database ==========================
                                              'id'  1518922
                                            'path'  /data/Music/Bulk/0nonmusic/PsychedelicPromosRadioSpotsVol.1/51. The Zombies - _Time Of The Season_ Promo Spot.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  56
                                           'genre'  nonmusic-commercials
                                        'filesize'  2261279
                                           'mtime'  1620525610
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic PsychedelicPromosRadioSpotsVol.1 51. _Time Season_ nonmusic commercials
                                      'tag_artist'  The Zombies
                                     'tag_release'  Psychedelic Promos Radio Spots Vol. 1
                                       'tag_title'  'Time Of The Season' Promo Spot
                                             'bpm'  121.264
                                    'search_title'  'of':3 'promo':7 'season':5,6 'spot':8 'the':4 'time':1,2
                                   'search_artist'  'the':1 'zombies':2
                                  'search_release'  '1':7 'promos':2 'psychedelic':1 'radio':3 'spots':4 'vol':5,6
                                     'search_rest'  '0nonmusic':1 '1':3,16 '51':5,6 'commercials':10 'nonmusic':9 'promos':12 'psychedelic':11 'psychedelicpromosradiospotsvol':2 'psychedelicpromosradiospotsvol1':4 'radio':13 'season':8 'spots':14 'time':7 'vol':15 'vol1':17
                                    'search_combo'  '0nonmusic':18 '1':17C,20,33 '51':22,23 'commercials':27 'nonmusic':26 'of':3A 'promo':7A 'promos':12C,29 'psychedelic':11C,28 'psychedelicpromosradiospotsvol':19 'psychedelicpromosradiospotsvol1':21 'radio':13C,30 'season':5A,6A,25 'spot':8A 'spots':14C,31 'the':4A,9B 'time':1A,2A,24 'vol':15C,16C,32 'vol1':34 'zombies':10B
                                    '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-2', 'q-syn-2', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['pop', 'rock', 'psychedelic', '60s', 'classic rock']
                                        'tag_date'  1970
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620525610.2983809  (2021-05-09 04:00:10)
                             'size'  2261279