======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '336'
                                          'artist'  'Accordion Tribe'
                                     'text_people'  ''
                                         'release'  'Sea of Reeds'
                                           'title'  'Spinning Jennie'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-2', 'Q-LOCALNESS-2', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['11', 'world', 'modern creative', 'folk', 'accordion']"
                                     'discogstags'  "['folk rock', 'rock', 'jazz', 'folk, world, & country', 'neofolk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '13'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'mi-accordeon'
                                             'bpm'  '144.1'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Sea of Reeds'
'TBPM' (BPM (beats per minute))                     '144.1'
'TCON' (Content type, a.k.a. Genre)                 'mi-accordeon'
'TDRC' (Recording time)                             '2002-08-18'
'TIT2' (Title/songname/content description)         'Spinning Jennie'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Accordion Tribe'
'TPE2' (Band/orchestra/accompaniment)               'Accordion Tribe'
'TRCK' (Track number/Position in set)               '13/13'
'TSOP' (Performer sort order)                       'Accordion Tribe'
'TXXX:ALBUMARTISTSORT'                              'Accordion Tribe'
'TXXX:ASIN'                                         'B00006FWZ5'
'TXXX:MusicBrainz Album Artist Id'                  '7fc3ab03-97c9-4679-814f-b3299dd038d0'
'TXXX:MusicBrainz Album Id'                         '0958f713-decd-4958-9c35-541a5d6d4b27'
'TXXX:MusicBrainz Album Release Country'            'FI'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '7fc3ab03-97c9-4679-814f-b3299dd038d0'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['folk rock', 'rock', 'jazz', 'folk, world, & country', 'neofolk']
'TXXX:lastfmtags'                                   ['11', 'world', 'modern creative', 'folk', 'accordion']
'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'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.60 dB'
'TXXX:replaygain_track_peak'                        '0.596223'

========================== row from database ==========================
                                              'id'  964074
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/sea of reeds/13 spinning jennie.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  336
                                           'genre'  mi-accordeon
                                        'filesize'  8090101
                                           'mtime'  1620528208
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm sea reeds 13 spinning jennie mi accordeon
                                      'tag_artist'  Accordion Tribe
                                     'tag_release'  Sea of Reeds
                                       'tag_title'  Spinning Jennie
                                             'bpm'  144.1
                                    'search_title'  'jennie':2 'spinning':1
                                   'search_artist'  'accordion':1 'tribe':2
                                  'search_release'  'of':2 'reeds':3 'sea':1
                                     'search_rest'  'accordeon':6 'jennie':4 'mi':5 'reeds':2 'sea':1 'spinning':3
                                    'search_combo'  'accordeon':13 'accordion':3B 'jennie':2A,11 'mi':12 'of':6C 'reeds':7C,9 'sea':5C,8 'spinning':1A,10 'tribe':4B
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['11', 'world', 'modern creative', 'folk', 'accordion']
                                        'tag_date'  2002
                                     'discogstags'  ['folk rock', 'rock', 'jazz', 'folk, world, & country', 'neofolk']

============================== file details ==============================
                                           'mtime'  1620528208.2181053  (2021-05-09 04:43:28)
                             'size'  8090101