======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '273'
                                          'artist'  'Big Bad Voodoo Daddy'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Christmastime In Tinseltown (Again)'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['big band', 'jazz', 'neo swing', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-soft-swing;set-th-christmas'
                                             'bpm'  '133.1'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'POPM:'                                             POPM(email='', rating=153, count=0)
'RVA2:track'                                        RVA2(desc='track', channel=1, gain=0.33984375, peak=0.6525573733507457)
'TBPM' (BPM (beats per minute))                     '133.1'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-soft-swing', 'set-th-christmas']
'TIT2' (Title/songname/content description)         'Christmastime In Tinseltown (Again)'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Big Bad Voodoo Daddy'
'TPE2' (Band/orchestra/accompaniment)               'Big Bad Voodoo Daddy'
'TRCK' (Track number/Position in set)               '5'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['big band', 'jazz', 'neo swing', 'swing']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'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'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.18 dB'
'TXXX:replaygain_track_peak'                        '0.652573'

========================== row from database ==========================
                                              'id'  1516952
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/Big Bad Voodoo Daddy/MBZ;#Big Bad Voodoo Daddy;#Sounds of the Season _98;#05;#Christmastime In Tinseltown (Again).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  273
                                           'genre'  prerock-jb-jazz-soft-swing;set-th-christmas
                                        'filesize'  4380262
                                           'mtime'  1620540610
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul MBZ;#Big Daddy;#Sounds of the Season _98;#05;#Christmastime prerock jb jazz soft swing;set th christmas
                                      'tag_artist'  Big Bad Voodoo Daddy
                                     'tag_release'  None
                                       'tag_title'  Christmastime In Tinseltown (Again)
                                             'bpm'  133.1
                                    'search_title'  'again':4,5 'christmastime':1 'in':2 'tinseltown':3
                                   'search_artist'  'bad':2 'big':1 'daddy':4 'voodoo':3
                                  'search_release'  
                                     'search_rest'  '05':16,19 '98':15,18 'big':5,7 'christmas':30 'christmastime':17,20 'daddy':8,10 'funk':2 'jazz':23 'jb':22 'mbz':4,6 'of':12 'prerock':21 'season':14 'set':26,28 'soft':24 'soul':3 'sounds':9,11 'swing':1,25,27 'th':29 'the':13
                                    'search_combo'  '05':25,28 '98':24,27 'again':4A,5A 'bad':7B 'big':6B,14,16 'christmas':39 'christmastime':1A,26,29 'daddy':9B,17,19 'funk':11 'in':2A 'jazz':32 'jb':31 'mbz':13,15 'of':21 'prerock':30 'season':23 'set':35,37 'soft':33 'soul':12 'sounds':18,20 'swing':10,34,36 'th':38 'the':22 'tinseltown':3A 'voodoo':8B
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['big band', 'jazz', 'neo swing', 'swing']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620540609.7747097  (2021-05-09 08:10:09)
                             'size'  4380262