======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '293'
                                          'artist'  "Jb's"
                                     'text_people'  ''
                                         'release'  "Damn Right I'm Somebody!"
                                           'title'  'Blow your Head'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['funk from the trunk', 'cool grooves', 'funk', 'beats', 'soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1973'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '119.124'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Damn Right I'm Somebody!"
'TBPM' (BPM (beats per minute))                     '119.124'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1973'
'TIT2' (Title/songname/content description)         'Blow your Head'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               "Jb's"
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['funk from the trunk', 'cool grooves', 'funk', 'beats', 'soul']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.02 dB'
'TXXX:replaygain_track_peak'                        '0.713090'

========================== row from database ==========================
                                              'id'  1498297
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Soul/Jb_s - Blow your Head.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  293
                                           'genre'  funk or soul
                                        'filesize'  9383790
                                           'mtime'  1628357769
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Soul Jb_s funk or soul
                                      'tag_artist'  Jb's
                                     'tag_release'  Damn Right I'm Somebody!
                                       'tag_title'  Blow your Head
                                             'bpm'  119.124
                                    'search_title'  'blow':1 'head':3 'your':2
                                   'search_artist'  'jb':1 'jbs':3 's':2
                                  'search_release'  'damn':1 'i':3 'im':5 'm':4 'right':2 'somebody':6
                                     'search_rest'  'country':4 'exotica':2 'funk':8 'jazz':1 'jb':6 'oldies':3 'or':9 's':7 'soul':5
                                    'search_combo'  'blow':1A 'country':16 'damn':7C 'exotica':14 'funk':20 'head':3A 'i':9C 'im':11C 'jazz':13 'jb':4B,18 'jbs':6B 'm':10C 'oldies':15 'or':21 'right':8C 's':5B,19 'somebody':12C 'soul':17 'your':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['funk from the trunk', 'cool grooves', 'funk', 'beats', 'soul']
                                        'tag_date'  1973
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357768.776541  (2021-08-07 19:36:08)
                             'size'  9383790