======================== unified (from filesystem) ========================
                                         'bitrate'  '64.0'
                                        'duration'  '327'
                                          'artist'  'Rita Pavone'
                                     'text_people'  ''
                                         'release'  'french tanguerooo'
                                           'title'  'Tango Lambada'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['60s', 'oldies', 'female vocalists', 'pop', '60s swinging yeye girls', "
 "'italian']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'loc-style-tango or milonga'
                                             'bpm'  '137.292'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'french tanguerooo'
'TBPM' (BPM (beats per minute))                     '137.292'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-tango or milonga'
'TDRC' (Recording time)                             '1995'
'TENC' (Encoded by)                                 'FrenchTangueo'
'TIT2' (Title/songname/content description)         'Tango Lambada'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Rita Pavone'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['60s',
 'oldies',
 'female vocalists',
 'pop',
 '60s swinging yeye girls',
 'italian']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.83 dB'
'TXXX:replaygain_track_peak'                        '0.642939'

========================== row from database ==========================
                                              'id'  930309
                                            'path'  /data/Music/Bulk/00localcharacter/french tanguerooo/rita pavone - tango lambada.mp3
                                         'working'  None
                                         'bitrate'  64
                                    'duration_sec'  327
                                           'genre'  loc-style-tango or milonga
                                        'filesize'  2617216
                                           'mtime'  1620528394
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter rita pavone tango lambada loc style tango or milonga
                                      'tag_artist'  Rita Pavone
                                     'tag_release'  french tanguerooo
                                       'tag_title'  Tango Lambada
                                             'bpm'  137.292
                                    'search_title'  'lambada':2 'tango':1
                                   'search_artist'  'pavone':2 'rita':1
                                  'search_release'  'french':1 'tanguerooo':2
                                     'search_rest'  'lambada':4 'loc':5 'milonga':8 'or':7 'pavone':2 'rita':1 'style':6 'tango':3
                                    'search_combo'  'french':5C 'lambada':2A,10 'loc':11 'milonga':14 'or':13 'pavone':4B,8 'rita':3B,7 'style':12 'tango':1A,9 'tanguerooo':6C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['60s', 'oldies', 'female vocalists', 'pop', '60s swinging yeye girls', 'italian']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528393.6237953  (2021-05-09 04:46:33)
                             'size'  2617216