======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '167'
                                          'artist'  'Aux Raus'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  ''
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['gabber punk', 'punk', 'electro', 'electronic', 'dutch']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-eur-netherlands'
                                             'bpm'  '95.035'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '95.035'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-netherlands'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Aux Raus'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['gabber punk', 'punk', 'electro', 'electronic', 'dutch']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.34 dB'
'TXXX:replaygain_track_peak'                        '0.697992'

========================== row from database ==========================
                                              'id'  1295289
                                            'path'  /data/Music/Bulk/00poprockelectronic/Aux Raus/auxraus-thisishowthisworks.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  167
                                           'genre'  loc-eur-netherlands
                                        'filesize'  3361406
                                           'mtime'  1621630125
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic auxraus thisishowthisworks loc eur netherlands
                                      'tag_artist'  Aux Raus
                                     'tag_release'  None
                                       'tag_title'  None
                                             'bpm'  95.035
                                    'search_title'  None
                                   'search_artist'  'aux':1 'raus':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'auxraus':2 'eur':5 'loc':4 'netherlands':6 'thisishowthisworks':3
                                    'search_combo'  '00poprockelectronic':3 'aux':1B 'auxraus':4 'eur':7 'loc':6 'netherlands':8 'raus':2B 'thisishowthisworks':5
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-piano-1', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['gabber punk', 'punk', 'electro', 'electronic', 'dutch']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621630124.8181338  (2021-05-21 22:48:44)
                             'size'  3361406