======================== unified (from filesystem) ========================
                                         'bitrate'  '238.337'
                                        'duration'  '283'
                                          'artist'  'Stevie Ray Vaughan'
                                     'text_people'  ''
                                         'release'  'The Blues'
                                           'title'  'Pigmeat Is What I Crave'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-1']")
                                      'lastfmtags'  "['blues rock', 'guitar', 'blues', 'rock', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues-rock;mi-guitar-electric'
                                             'bpm'  '121.8'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Blues'
'TBPM' (BPM (beats per minute))                     '121.8'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-blues-rock', 'mi-guitar-electric']
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         'Pigmeat Is What I Crave'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Stevie Ray Vaughan'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['blues rock', 'guitar', 'blues', 'rock', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.24 dB'
'TXXX:replaygain_track_peak'                        '0.846371'

========================== row from database ==========================
                                              'id'  1322120
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Blues/09 Pigmeat Is What I Crave.wma.mp3
                                         'working'  None
                                         'bitrate'  238
                                    'duration_sec'  283
                                           'genre'  prerock-jb-blues-rock;mi-guitar-electric
                                        'filesize'  8443873
                                           'mtime'  1620404843
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 09 Crave.wma prerock jb blues rock;mi guitar electric
                                      'tag_artist'  Stevie Ray Vaughan
                                     'tag_release'  The Blues
                                       'tag_title'  Pigmeat Is What I Crave
                                             'bpm'  121.8
                                    'search_title'  'crave':5 'i':4 'is':2 'pigmeat':1 'what':3
                                   'search_artist'  'ray':2 'stevie':1 'vaughan':3
                                  'search_release'  'blues':2 'the':1
                                     'search_rest'  '00poprockelectronic':1 'blues':7 'crave':2 'cravewma':4 'electric':13 'guitar':12 'jb':6 'mi':9,11 'prerock':5 'rock':8,10 'wma':3
                                    'search_combo'  '00poprockelectronic':11 'blues':10C,17 'crave':5A,12 'cravewma':14 'electric':23 'guitar':22 'i':4A 'is':2A 'jb':16 'mi':19,21 'pigmeat':1A 'prerock':15 'ray':7B 'rock':18,20 'stevie':6B 'the':9C 'vaughan':8B 'what':3A 'wma':13
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['blues rock', 'guitar', 'blues', 'rock', 'classic rock']
                                        'tag_date'  1960
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620404842.8569624  (2021-05-07 18:27:22)
                             'size'  8443873