======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '409'
                                          'artist'  'Loituma'
                                     'text_people'  ''
                                         'release'  'things of beauty'
                                           'title'  'suo (marshland)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['finnish folk', 'nordic folk', 'finnish', 'folk', 'kantele']"
                                     'discogstags'  "['pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'loc-eur-northern-finland'
                                             'bpm'  '138.702'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'things of beauty'
'TBPM' (BPM (beats per minute))                     '138.702'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-northern-finland'
'TDOR' (Original release time)                      '2006'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'suo (marshland)'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Loituma'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'pop'
'TXXX:lastfmtags'                                   ['finnish folk', 'nordic folk', 'finnish', 'folk', 'kantele']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.99 dB'
'TXXX:replaygain_track_peak'                        '0.634640'

========================== row from database ==========================
                                              'id'  932195
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00scandinavia/Loituma/loituma - suo (marshland).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  409
                                           'genre'  loc-eur-northern-finland
                                        'filesize'  6551382
                                           'mtime'  1621629430
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00scandinavia loituma loc eur northern finland
                                      'tag_artist'  Loituma
                                     'tag_release'  things of beauty
                                       'tag_title'  suo (marshland)
                                             'bpm'  138.702
                                    'search_title'  'marshland':2,3 'suo':1
                                   'search_artist'  'loituma':1
                                  'search_release'  'beauty':3 'of':2 'things':1
                                     'search_rest'  '00mid':1 '00scandinavia':4 'eur':7 'europe':3 'finland':9 'loc':6 'loituma':5 'north':2 'northern':8
                                    'search_combo'  '00mid':8 '00scandinavia':11 'beauty':7C 'eur':14 'europe':10 'finland':16 'loc':13 'loituma':4B,12 'marshland':2A,3A 'north':9 'northern':15 'of':6C 'suo':1A 'things':5C
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['finnish folk', 'nordic folk', 'finnish', 'folk', 'kantele']
                                        'tag_date'  2006
                                     'discogstags'  ['pop']

============================== file details ==============================
                                           'mtime'  1621629429.7590508  (2021-05-21 22:37:09)
                             'size'  6551382