======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '272'
                                          'artist'  'Gabi Lunca'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Anii mei si tineretea'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-HHRNBTT-1', 'Q-UNU-3', 'Q-OLDST-1', "
 "'Q-LOCALNESS-4', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['traditional', 'romanian', 'romania', 'folk', 'lautari music']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-style-gypsy or balkan or klezmer;mi-brass'
                                             'bpm'  '108.996'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '108.996'
'TCON' (Content type, a.k.a. Genre)                 ['loc-style-gypsy or balkan or klezmer', 'mi-brass']
'TIT2' (Title/songname/content description)         'Anii mei si tineretea'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Gabi Lunca'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   ['traditional', 'romanian', 'romania', 'folk', 'lautari music']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.48 dB'
'TXXX:replaygain_track_peak'                        '0.578959'

========================== row from database ==========================
                                              'id'  653893
                                            'path'  /data/Music/Bulk/00localcharacter/gabi lunca - doua mame pentru-o fata/10 anii mei si tineretea.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  272
                                           'genre'  loc-style-gypsy or balkan or klezmer;mi-brass
                                        'filesize'  4360902
                                           'mtime'  1620530361
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter gabi lunca doua mame pentru o fata 10 anii loc style gypsy or balkan or klezmer;mi brass
                                      'tag_artist'  Gabi Lunca
                                     'tag_release'  None
                                       'tag_title'  Anii mei si tineretea
                                             'bpm'  108.996
                                    'search_title'  'anii':1 'mei':2 'si':3 'tineretea':4
                                   'search_artist'  'gabi':1 'lunca':2
                                  'search_release'  
                                     'search_rest'  'anii':8 'balkan':13 'brass':18 'doua':3 'fata':7 'gabi':1 'gypsy':11 'klezmer':14,16 'loc':9 'lunca':2 'mame':4 'mi':15,17 'o':6 'or':12 'pentru':5 'style':10
                                    'search_combo'  'anii':1A,14 'balkan':19 'brass':24 'doua':9 'fata':13 'gabi':5B,7 'gypsy':17 'klezmer':20,22 'loc':15 'lunca':6B,8 'mame':10 'mei':2A 'mi':21,23 'o':12 'or':18 'pentru':11 'si':3A 'style':16 'tineretea':4A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-3', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['traditional', 'romanian', 'romania', 'folk', 'lautari music']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620530360.64311  (2021-05-09 05:19:20)
                             'size'  4360902