======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '149'
                                          'artist'  'Toni Iordache'
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  'Geamparalele lui Haidim'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', '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'  '5'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-style-gypsy or balkan or klezmer;mi-brass'
                                             'bpm'  '145.685'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '[non-album tracks]'
'TBPM' (BPM (beats per minute))                     '145.685'
'TCON' (Content type, a.k.a. Genre)                 ['loc-style-gypsy or balkan or klezmer', 'mi-brass']
'TIT2' (Title/songname/content description)         'Geamparalele lui Haidim'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Toni Iordache'
'TRCK' (Track number/Position in set)               '5'
'TSOP' (Performer sort order)                       'Iordache, Toni'
'TXXX:Artists'                                      'Toni Iordache'
'TXXX:MusicBrainz Artist Id'                        '79f904d3-8639-4fd4-840f-2d2315224440'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['folk, world, & country', 'folk']
'TXXX:lastfmtags'                                   ['romanian', 'cimbalom', 'balkan', 'romania', 'gypsy']
'TXXX:q-bass'                                       '3'
'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-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.54 dB'
'TXXX:replaygain_track_peak'                        '0.421670'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'b0996b60-ce26-46f1-bfdd-f15c1e60a58e')

========================== row from database ==========================
                                              'id'  1387120
                                            'path'  /data/Music/Bulk/00localcharacter/Mladen Kojnarov - balkan blues 1/Toni Iordache - Geamparalele Lui Haidim.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  149
                                           'genre'  loc-style-gypsy or balkan or klezmer;mi-brass
                                        'filesize'  3639098
                                           'mtime'  1620528861
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Mladen Kojnarov balkan blues 1 Lui loc style gypsy balkan klezmer;mi brass
                                      'tag_artist'  Toni Iordache
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  Geamparalele lui Haidim
                                             'bpm'  145.685
                                    'search_title'  'geamparalele':1 'haidim':3 'lui':2
                                   'search_artist'  'iordache':2 'toni':1
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4,5
                                     'search_rest'  '1':5 'balkan':3 'blues':4 'brass':14 'gypsy':9 'klezmer':10,12 'kojnarov':2 'loc':7 'lui':6 'mi':11,13 'mladen':1 'style':8
                                    'search_combo'  '1':15 'album':7C 'balkan':13 'blues':14 'brass':24 'geamparalele':1A 'gypsy':19 'haidim':3A 'iordache':5B 'klezmer':20,22 'kojnarov':12 'loc':17 'lui':2A,16 'mi':21,23 'mladen':11 'non':6C 'nonalbum':8C 'style':18 'toni':4B 'tracks':9C,10C
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', '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-3', 'q-grit-2']
                                      'lastfmtags'  ['romanian', 'cimbalom', 'balkan', 'romania', 'gypsy']
                                        'tag_date'  
                                     'discogstags'  ['folk, world, & country', 'folk']

============================== file details ==============================
                                           'mtime'  1620528860.7708662  (2021-05-09 04:54:20)
                             'size'  3639098