======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '178'
                                          'artist'  'Irving Joseph'
                                     'text_people'  ''
                                         'release'  'Murder, Inc.'
                                           'title'  'April In Brownsville'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-JZFKS-3', "
 "'Q-OLDST-4', 'Q-PLAY-2', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-1', 'q-drums-1', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['modern classical', 'jazz', 'space age pop', 'crime jazz', 'o']"
                                     'discogstags'  "['jazz', 'stage & screen', 'surf', 'space-age', 'big band']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-soft-crime'
                                             'bpm'  '116.5'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Murder, Inc.'
'TBPM' (BPM (beats per minute))                     '116.5'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-soft-crime'
'TDRC' (Recording time)                             '1960'
'TENC' (Encoded by)                                 'Basic Hip Digital Oddio'
'TIT2' (Title/songname/content description)         'April In Brownsville'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Irving Joseph'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '4'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['jazz', 'stage & screen', 'surf', 'space-age', 'big band']
'TXXX:lastfmtags'                                   ['modern classical', 'jazz', 'space age pop', 'crime jazz', 'o']
'TXXX:original release date'                        ['1960', '1960']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.49 dB'
'TXXX:replaygain_track_peak'                        '0.742937'

========================== row from database ==========================
                                              'id'  1298589
                                            'path'  /data/Music/Bulk/00spent/Whistling/Irving Joseph/Irving Joseph - 12  April In Brownsville.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  178
                                           'genre'  prerock-jb-jazz-soft-crime
                                        'filesize'  2859543
                                           'mtime'  1620541704
                                   'redo_metaread'  0
                                        'rest_str'   00spent Whistling 12 prerock jb jazz soft crime
                                      'tag_artist'  Irving Joseph
                                     'tag_release'  Murder, Inc.
                                       'tag_title'  April In Brownsville
                                             'bpm'  116.5
                                    'search_title'  'april':1 'brownsville':3 'in':2
                                   'search_artist'  'irving':1 'joseph':2
                                  'search_release'  'inc':3,4 'murder':1,2
                                     'search_rest'  '00spent':1 'crime':7 'jazz':5 'jb':4 'prerock':3 'soft':6 'whistling':2
                                    'search_combo'  '00spent':10 'april':1A 'brownsville':3A 'crime':16 'in':2A 'inc':8C,9C 'irving':4B 'jazz':14 'jb':13 'joseph':5B 'murder':6C,7C 'prerock':12 'soft':15 'whistling':11
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-4', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['modern classical', 'jazz', 'space age pop', 'crime jazz', 'o']
                                        'tag_date'  1960
                                     'discogstags'  ['jazz', 'stage & screen', 'surf', 'space-age', 'big band']

============================== file details ==============================
                                           'mtime'  1620541703.5529685  (2021-05-09 08:28:23)
                             'size'  2859543