======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '194'
                                          'artist'  'Boban Marković'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Otpisani'
                                           '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-chart-2', 'q-drums-4', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['balkan']"
                                     'discogstags'  "['folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'loc-style-gypsy or balkan or klezmer;mi-brass'
                                             'bpm'  '125.626'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '125.626'
'TCON' (Content type, a.k.a. Genre)                 ['loc-style-gypsy or balkan or klezmer', 'mi-brass']
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Otpisani'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Boban Marković'
'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'
'TXXX:lastfmtags'                                   'balkan'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'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'                        '0.440985'
'USLT::eng'                                         ' '

========================== row from database ==========================
                                              'id'  763087
                                            'path'  /data/Music/Bulk/00localcharacter/Guća 2006/Boban Markovic - Otpisani.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  194
                                           'genre'  loc-style-gypsy or balkan or klezmer;mi-brass
                                        'filesize'  4681214
                                           'mtime'  1620528495
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Guća 2006 Markovic loc style gypsy or balkan or klezmer;mi brass
                                      'tag_artist'  Boban Marković
                                     'tag_release'  None
                                       'tag_title'  Otpisani
                                             'bpm'  125.626
                                    'search_title'  'otpisani':1
                                   'search_artist'  'boban':1 'markovic':2,3
                                  'search_release'  
                                     'search_rest'  '2006':3 'balkan':9 'brass':14 'guca':1,2 'gypsy':7 'klezmer':10,12 'loc':5 'markovic':4 'mi':11,13 'or':8 'style':6
                                    'search_combo'  '2006':7 'balkan':13 'boban':2B 'brass':18 'guca':5,6 'gypsy':11 'klezmer':14,16 'loc':9 'markovic':3B,4B,8 'mi':15,17 'or':12 'otpisani':1A 'style':10
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4A
                                           '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-4', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['balkan']
                                        'tag_date'  2006
                                     'discogstags'  ['folk']

============================== file details ==============================
                                           'mtime'  1620528495.488086  (2021-05-09 04:48:15)
                             'size'  4681214