======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '436'
                                          'artist'  'Julie Andrews/Martyn Green'
                                     'text_people'  'Louis Hardin/Moondog'
                                         'release'  'Songs Of Sense & Nonsense - Tell It Again'
                                           'title'  'School Days And Learning Songs'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted;prerock-classical or classical instruments'
                                             'bpm'  '123.58'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Songs Of Sense & Nonsense - Tell It Again'
'TBPM' (BPM (beats per minute))                     '123.58'
'TCOM' (Composer)                                   'Louis Hardin/Moondog'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-unsorted', 'prerock-classical or classical instruments']
'TDRC' (Recording time)                             '1957'
'TIT2' (Title/songname/content description)         'School Days And Learning Songs'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Moondog, Julie Andrews & Martyn Green'
'TPE2' (Band/orchestra/accompaniment)               'Julie Andrews/Martyn Green'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '4'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.44 dB'
'TXXX:replaygain_track_peak'                        '0.584174'

========================== row from database ==========================
                                              'id'  770232
                                            'path'  /data/Music/Bulk/0soundtrack/[1957] Tell It Again(with Julie Andrews)/02. school days and learning songs.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  436
                                           'genre'  electronic-unsorted;prerock-classical or classical instruments
                                        'filesize'  17446618
                                           'mtime'  1644062613
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack [1957] Again(with Andrews) 02. school days and learning songs electronic unsorted;prerock classical or classical instruments
                                      'tag_artist'  Julie Andrews/Martyn Green
                                     'tag_release'  Songs Of Sense & Nonsense - Tell It Again
                                       'tag_title'  School Days And Learning Songs
                                             'bpm'  123.58
                                    'search_title'  'and':3 'days':2 'learning':4 'school':1 'songs':5
                                   'search_artist'  'andrews':2 'andrewsmartyn':4 'green':5 'julie':1 'martyn':3
                                  'search_release'  'again':7 'it':6 'nonsense':4 'of':2 'sense':3 'songs':1 'tell':5
                                     'search_rest'  '02':9,10 '0soundtrack':1 '1957':2,3 'again':4 'againwith':6 'and':13 'andrews':7,8 'classical':21 'days':12 'electronic':16 'instruments':23 'learning':14 'or':22 'prerock':18,20 'school':11 'songs':15 'unsorted':17,19 'with':5
                                    'search_combo'  '02':26,27 '0soundtrack':18 '1957':19,20 'again':17C,21 'againwith':23 'and':3A,30 'andrews':7B,24,25 'andrewsmartyn':9B 'classical':38 'days':2A,29 'electronic':33 'green':10B 'instruments':40 'it':16C 'julie':6B 'learning':4A,31 'martyn':8B 'nonsense':14C 'of':12C 'or':39 'prerock':35,37 'school':1A,28 'sense':13C 'songs':5A,11C,32 'tell':15C 'unsorted':34,36 'with':22
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-4', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  []
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1644062612.5029223  (2022-02-05 13:03:32)
                             'size'  17446618