======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '197'
                                          'artist'  'Jelly Roll Morton'
                                     'text_people'  ''
                                         'release'  'Great Original Performances 19'
                                           'title'  'Beale Street Blues'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['new orleans', 'ragtime', 'jazz', 'piano', 'blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-o-dixiestyle'
                                             'bpm'  '136.184'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Great Original Performances 19'
'TBPM' (BPM (beats per minute))                     '136.184'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-o-dixiestyle'
'TIT2' (Title/songname/content description)         'Beale Street Blues'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Jelly Roll Morton'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['new orleans', 'ragtime', 'jazz', 'piano', 'blues']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.84 dB'
'TXXX:replaygain_track_peak'                        '0.767702'

========================== row from database ==========================
                                              'id'  674308
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Jelly Roll Morton/Dixieland Jazz - Jellyroll Morton - Beale street blues.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  197
                                           'genre'  prerock-jb-jazz-o-dixiestyle
                                        'filesize'  4737693
                                           'mtime'  1620530440
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Dixieland Jazz Jellyroll street blues prerock jb jazz dixiestyle
                                      'tag_artist'  Jelly Roll Morton
                                     'tag_release'  Great Original Performances 19
                                       'tag_title'  Beale Street Blues
                                             'bpm'  136.184
                                    'search_title'  'beale':1 'blues':3 'street':2
                                   'search_artist'  'jelly':1 'morton':3 'roll':2
                                  'search_release'  '19':4 'great':1 'original':2 'performances':3
                                     'search_rest'  'blues':8 'country':4 'dixieland':5 'dixiestyle':11 'exotica':2 'jazz':1 'jb':10 'jellyroll':6 'oldies':3 'prerock':9 'street':7
                                    'search_combo'  '19':10C 'beale':1A 'blues':3A,18 'country':14 'dixieland':15 'dixiestyle':21 'exotica':12 'great':7C 'jazz':11 'jb':20 'jelly':4B 'jellyroll':16 'morton':6B 'oldies':13 'original':8C 'performances':9C 'prerock':19 'roll':5B 'street':2A,17
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['new orleans', 'ragtime', 'jazz', 'piano', 'blues']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620530439.528392  (2021-05-09 05:20:39)
                             'size'  4737693