======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '160'
                                          'artist'  'Barbara Luna'
                                     'text_people'  'Barbara Luna'
                                         'release'  'plastictango new'
                                           'title'  'Grito De Milonga'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'Q-PIANO-3', 'q-chart-2', 'q-drums-4', 'q-other-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['female vocalists', 'tango', 'world music', 'spanish', 'world', 'argentina']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'loc-style-tango or milonga;loc-unsorted'
                                             'bpm'  '139.466'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'plastictango new'
'TBPM' (BPM (beats per minute))                     '139.466'
'TCOM' (Composer)                                   'Barbara Luna'
'TCON' (Content type, a.k.a. Genre)                 ['loc-style-tango or milonga', 'loc-unsorted']
'TDRC' (Recording time)                             '2004'
'TENC' (Encoded by)                                 'iTunes v6.0.4'
'TIT2' (Title/songname/content description)         'Grito De Milonga'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Barbara Luna'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:MP3GAIN_MINMAX'                               '110,184'
'TXXX:MP3GAIN_UNDO'                                 '+001,+001,N'
'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:lastfmtags'                                   ['female vocalists', 'tango', 'world music', 'spanish', 'world', 'argentina']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.78 dB'
'TXXX:replaygain_track_peak'                        '0.579933'

========================== row from database ==========================
                                              'id'  247364
                                            'path'  /data/Music/Bulk/00localcharacter/plastictango/new/new!! 44.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  160
                                           'genre'  loc-style-tango or milonga;loc-unsorted
                                        'filesize'  3864796
                                           'mtime'  1620528442
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter new!! 44 loc style or milonga;loc unsorted
                                      'tag_artist'  Barbara Luna
                                     'tag_release'  plastictango new
                                       'tag_title'  Grito De Milonga
                                             'bpm'  139.466
                                    'search_title'  'de':2 'grito':1 'milonga':3
                                   'search_artist'  'barbara':1 'luna':2
                                  'search_release'  'new':2 'plastictango':1
                                     'search_rest'  '44':2 'loc':3,7,9 'milonga':6,8 'new':1 'or':5 'style':4 'unsorted':10
                                    'search_combo'  '44':9 'barbara':4B 'de':2A 'grito':1A 'loc':10,14,16 'luna':5B 'milonga':3A,13,15 'new':7C,8 'or':12 'plastictango':6C 'style':11 'unsorted':17
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['female vocalists', 'tango', 'world music', 'spanish', 'world', 'argentina']
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528441.8672519  (2021-05-09 04:47:21)
                             'size'  3864796