======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '135'
                                          'artist'  'The Beach Boys'
                                     'text_people'  ''
                                         'release'  'Beach Boy Classics Selected By Brian Wilson'
                                           'title'  'I Get Around'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['surf', 'rock', 'pop', '60s', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-pop-surf;rock-cppex;set-pl-billboard'
                                             'bpm'  '145.580'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Beach Boy Classics Selected By Brian Wilson'
'TBPM' (BPM (beats per minute))                     '145.580'
'TCON' (Content type, a.k.a. Genre)                 ['rock-pop-surf', 'rock-cppex', 'set-pl-billboard']
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'I Get Around'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Beach Boys'
'TRCK' (Track number/Position in set)               '1'
'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'                                       '3'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.47 dB'
'TXXX:replaygain_track_peak'                        '0.386613'

========================== row from database ==========================
                                              'id'  1312851
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Beach Boys/MBZ;#The Beach Boys;#The Beach Boys 36 All-Time Greatest Hits (disc 2);#01;#I Get Around.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  135
                                           'genre'  rock-pop-surf;rock-cppex;set-pl-billboard
                                        'filesize'  3245565
                                           'mtime'  1636038771
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#The Boys;#The 36 All Time Greatest Hits (disc 2);#01;#I rock pop surf;rock cppex;set pl billboard
                                      'tag_artist'  The Beach Boys
                                     'tag_release'  Beach Boy Classics Selected By Brian Wilson
                                       'tag_title'  I Get Around
                                             'bpm'  145.58
                                    'search_title'  'around':3 'get':2 'i':1
                                   'search_artist'  'beach':2 'boys':3 'the':1
                                  'search_release'  'beach':1 'boy':2 'brian':6 'by':5 'classics':3 'selected':4 'wilson':7
                                     'search_rest'  '00poprockelectronic':1 '01':18,21 '2':17,20 '36':10 'all':11 'billboard':34 'boys':6,8 'cppex':29,31 'disc':15,16 'greatest':13 'hits':14 'i':19,22 'mbz':2,4 'pl':33 'pop':24 'rock':23,26,28 'set':30,32 'surf':25,27 'the':3,5,7,9 'time':12
                                    'search_combo'  '00poprockelectronic':14 '01':31,34 '2':30,33 '36':23 'all':24 'around':3A 'beach':5B,7C 'billboard':47 'boy':8C 'boys':6B,19,21 'brian':12C 'by':11C 'classics':9C 'cppex':42,44 'disc':28,29 'get':2A 'greatest':26 'hits':27 'i':1A,32,35 'mbz':15,17 'pl':46 'pop':37 'rock':36,39,41 'selected':10C 'set':43,45 'surf':38,40 'the':4B,16,18,20,22 'time':25 'wilson':13C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-3', 'q-grit-2']
                                      'lastfmtags'  ['surf', 'rock', 'pop', '60s', 'classic rock']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636038771.3013413  (2021-11-04 16:12:51)
                             'size'  3245565