======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '461'
                                          'artist'  'infected mushroom'
                                     'text_people'  ''
                                         'release'  'my mummy said'
                                           'title'  'the fly'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-4', "
 "'Q-LOCALNESS-1', 'q-syn-4', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['trance', 'goa', 'electronic', 'psychedelic', 'psytrance']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'electronic-th-trance-goa or psy'
                                             'bpm'  '145.580'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'my mummy said'
'TBPM' (BPM (beats per minute))                     '145.580'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-trance-goa or psy'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'the fly'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'infected mushroom'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '4'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['trance', 'goa', 'electronic', 'psychedelic', 'psytrance']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.71 dB'
'TXXX:replaygain_track_peak'                        '0.622802'

========================== row from database ==========================
                                              'id'  145534
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Infected Mushroom/Infected Mushroom - My Mummy Said - 007 - The Fly.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  461
                                           'genre'  electronic-th-trance-goa or psy
                                        'filesize'  11075128
                                           'mtime'  1620558811
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Infected Mushroom Infected Mushroom My Mummy Said 007 The Fly electronic trance goa or psy
                                      'tag_artist'  infected mushroom
                                     'tag_release'  my mummy said
                                       'tag_title'  the fly
                                             'bpm'  145.58
                                    'search_title'  'fly':2 'the':1
                                   'search_artist'  'infected':1 'mushroom':2
                                  'search_release'  'mummy':2 'my':1 'said':3
                                     'search_rest'  'electronic':8 'fly':7 'goa':10 'infected':1 'mummy':4 'mushroom':2 'my':3 'or':11 'psy':12 'said':5 'the':6 'trance':9
                                    'search_combo'  'electronic':15 'fly':2A,14 'goa':17 'infected':3B,8 'mummy':6C,11 'mushroom':4B,9 'my':5C,10 'or':18 'psy':19 'said':7C,12 'the':1A,13 'trance':16
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-4', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['trance', 'goa', 'electronic', 'psychedelic', 'psytrance']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620558810.8638875  (2021-05-09 13:13:30)
                             'size'  11075128