======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '228'
                                          'artist'  'Palast Orchester-Max Raabe'
                                     'text_people'  'Franz Lehár'
                                         'release'  'french tanguerooo'
                                           'title'  'Dein Ist Mein Ganzes Herz'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'loc-style-tango or milonga'
                                             'bpm'  '115.261'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'french tanguerooo'
'TBPM' (BPM (beats per minute))                     '115.261'
'TCOM' (Composer)                                   'Franz Lehár'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-tango or milonga'
'TDRC' (Recording time)                             '2000'
'TENC' (Encoded by)                                 'FrenchTanguero'
'TIT2' (Title/songname/content description)         'Dein Ist Mein Ganzes Herz'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Palast Orchester-Max Raabe'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Universal Import'
'TXXX:CAN_SKIP_BACKWARD'                            'AN'
'TXXX:CAN_SKIP_FORWARD'                             'AN'
'TXXX:FILESIZE'                                     'ILESIZE'
'TXXX:HASARBITRARYDATASTREAM'                       'AS'
'TXXX:HASATTACHEDIMAGES'                            'AS'
'TXXX:HASFILETRANSFERSTREAM'                        'AS'
'TXXX:ISVBR'                                        'SVB'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:WM/CONTAINERFORMAT'                           'M'
'TXXX:WM/TRACKNUMBER'                               'M'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.80 dB'
'TXXX:replaygain_track_peak'                        '0.608966'

========================== row from database ==========================
                                              'id'  924946
                                            'path'  /data/Music/Bulk/00localcharacter/french tanguerooo/palast orchester-max raabe - dein ist mein ganzes herz.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  228
                                           'genre'  loc-style-tango or milonga
                                        'filesize'  9160576
                                           'mtime'  1620528383
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter palast orchester max raabe dein ist mein ganzes herz loc style tango or milonga
                                      'tag_artist'  Palast Orchester-Max Raabe
                                     'tag_release'  french tanguerooo
                                       'tag_title'  Dein Ist Mein Ganzes Herz
                                             'bpm'  115.261
                                    'search_title'  'dein':1 'ganzes':4 'herz':5 'ist':2 'mein':3
                                   'search_artist'  'max':3 'orchester':2 'orchestermax':4 'palast':1 'raabe':5
                                  'search_release'  'french':1 'tanguerooo':2
                                     'search_rest'  'dein':5 'ganzes':8 'herz':9 'ist':6 'loc':10 'max':3 'mein':7 'milonga':14 'or':13 'orchester':2 'palast':1 'raabe':4 'style':11 'tango':12
                                    'search_combo'  'dein':1A,17 'french':11C 'ganzes':4A,20 'herz':5A,21 'ist':2A,18 'loc':22 'max':8B,15 'mein':3A,19 'milonga':26 'or':25 'orchester':7B,14 'orchestermax':9B 'palast':6B,13 'raabe':10B,16 'style':23 'tango':24 'tanguerooo':12C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528382.6661806  (2021-05-09 04:46:22)
                             'size'  9160576