======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '143'
                                          'artist'  'The Beach Boys'
                                     'text_people'  ''
                                         'release'  'The Beach Boys 20 Golden Great'
                                           'title'  "Wouldn't It Be Nice"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['surf', 'rock', 'pop', '60s', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-pop-surf;rock-cppex'
                                             'bpm'  '122.733'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Beach Boys 20 Golden Great'
'TBPM' (BPM (beats per minute))                     '122.733'
'TCON' (Content type, a.k.a. Genre)                 ['rock-pop-surf', 'rock-cppex']
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         "Wouldn't It Be Nice"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Beach Boys'
'TRCK' (Track number/Position in set)               '13'
'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'                                   ['surf', 'rock', 'pop', '60s', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.50 dB'
'TXXX:replaygain_track_peak'                        '0.549438'

========================== row from database ==========================
                                              'id'  1511745
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Beach Boys/MBZ;#The Beach Boys;#The Beach Boys 20 Golden Greats;#13;#Wouldn_t It Be Nice.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  143
                                           'genre'  rock-pop-surf;rock-cppex
                                        'filesize'  3451816
                                           'mtime'  1636038771
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#The Boys;#The Greats;#13;#Wouldn_t rock pop surf;rock cppex
                                      'tag_artist'  The Beach Boys
                                     'tag_release'  The Beach Boys 20 Golden Great
                                       'tag_title'  Wouldn't It Be Nice
                                             'bpm'  122.733
                                    'search_title'  'be':5 'it':4 'nice':6 't':2 'wouldn':1 'wouldnt':3
                                   'search_artist'  'beach':2 'boys':3 'the':1
                                  'search_release'  '20':4 'beach':2 'boys':3 'golden':5 'great':6 'the':1
                                     'search_rest'  '00poprockelectronic':1 '13':11,15 'boys':6,8 'cppex':24 'greats':10,14 'mbz':2,4 'pop':19 'rock':18,21,23 'surf':20,22 't':13,17 'the':3,5,7,9 'wouldn':12,16
                                    'search_combo'  '00poprockelectronic':16 '13':26,30 '20':13C 'be':5A 'beach':8B,11C 'boys':9B,12C,21,23 'cppex':39 'golden':14C 'great':15C 'greats':25,29 'it':4A 'mbz':17,19 'nice':6A 'pop':34 'rock':33,36,38 'surf':35,37 't':2A,28,32 'the':7B,10C,18,20,22,24 'wouldn':1A,27,31 'wouldnt':3A
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['surf', 'rock', 'pop', '60s', 'classic rock']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636038771.2410522  (2021-11-04 16:12:51)
                             'size'  3451816