======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '306'
                                          'artist'  'Toni Iordache'
                                     'text_people'  ''
                                         'release'  'Sounds From A Bygone Age · Vol.4'
                                           'title'  'Baladă Haiducească'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'Q-PIANO-3', 'q-chart-2', 'q-drums-1', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['romanian', 'cimbalom', 'balkan', 'romania', 'gypsy']"
                                     'discogstags'  "['folk, world, & country', 'folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'loc-style-gypsy or balkan or klezmer;mi-brass'
                                             'bpm'  '142.5'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Sounds From A Bygone Age · Vol.4'
'TBPM' (BPM (beats per minute))                     '142.5'
'TCON' (Content type, a.k.a. Genre)                 ['loc-style-gypsy or balkan or klezmer', 'mi-brass']
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'Baladă Haiducească'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Toni Iordache'
'TPE2' (Band/orchestra/accompaniment)               'Toni Iordache'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['folk, world, & country', 'folk']
'TXXX:lastfmtags'                                   ['romanian', 'cimbalom', 'balkan', 'romania', 'gypsy']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+7.82 dB'
'TXXX:replaygain_track_peak'                        '0.211195'

========================== row from database ==========================
                                              'id'  1476584
                                            'path'  /data/Music/Bulk/00localcharacter/Toni Iordache - Sounds from a Byone Age Vol. 4/Toni Iordache - 2007 Sounds from a Bygone Age Vol. 4 - 06. Balada haiduceasca.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  306
                                           'genre'  loc-style-gypsy or balkan or klezmer;mi-brass
                                        'filesize'  9967498
                                           'mtime'  1620529312
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter from Byone 2007 from 06. Balada haiduceasca loc style gypsy balkan klezmer;mi brass
                                      'tag_artist'  Toni Iordache
                                     'tag_release'  Sounds From A Bygone Age · Vol.4
                                       'tag_title'  Baladă Haiducească
                                             'bpm'  142.5
                                    'search_title'  'balada':1,2 'haiduceasca':3,4
                                   'search_artist'  'iordache':2 'toni':1
                                  'search_release'  '4':7 'a':3 'age':5 'bygone':4 'from':2 'sounds':1 'vol':6 'vol4':8
                                     'search_rest'  '06':4,5 '2007':3 'balada':6 'balkan':11 'brass':16 'byone':2 'from':1 'gypsy':10 'haiduceasca':7 'klezmer':12,14 'loc':8 'mi':13,15 'style':9
                                    'search_combo'  '06':18,19 '2007':17 '4':13C 'a':9C 'age':11C 'balada':1A,2A,20 'balkan':25 'brass':30 'bygone':10C 'byone':16 'from':8C,15 'gypsy':24 'haiduceasca':3A,4A,21 'iordache':6B 'klezmer':26,28 'loc':22 'mi':27,29 'sounds':7C 'style':23 'toni':5B 'vol':12C 'vol4':14C
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-mixbeat-2', 'Q-PIANO-3', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-2', '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'  ['romanian', 'cimbalom', 'balkan', 'romania', 'gypsy']
                                        'tag_date'  2007
                                     'discogstags'  ['folk, world, & country', 'folk']

============================== file details ==============================
                                           'mtime'  1620529311.8458455  (2021-05-09 05:01:51)
                             'size'  9967498