======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '465'
                                          'artist'  'Dieselboy, DJ Jerome, DJ Dara, Grooverider, Roni Size'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Live drum and bass set'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-th-breakbeat or dnb or jungle'
                                             'bpm'  '110.845'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '110.845'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-breakbeat or dnb or jungle'
'TIT2' (Title/songname/content description)         'Live drum and bass set'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Dieselboy, DJ Jerome, DJ Dara, Grooverider, Roni Size'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.82 dB'
'TXXX:replaygain_track_peak'                        '0.650947'

========================== row from database ==========================
                                              'id'  1350450
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Dieselboy, DJ Jerome, DJ Dara, Grooverider, Roni Size__cifs9104.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  465
                                           'genre'  electronic-th-breakbeat or dnb or jungle
                                        'filesize'  7455275
                                           'mtime'  1621696840
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Size__cifs9104 electronic th breakbeat or dnb or jungle
                                      'tag_artist'  Dieselboy, DJ Jerome, DJ Dara, Grooverider, Roni Size
                                     'tag_release'  None
                                       'tag_title'  Live drum and bass set
                                             'bpm'  110.845
                                    'search_title'  'and':3 'bass':4 'drum':2 'live':1 'set':5
                                   'search_artist'  'dara':6,7 'dieselboy':1,2 'dj':3 'grooverider':8,9 'jerome':4,5 'roni':10 'size':11
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'breakbeat':11 'cifs9104':8 'dnb':13 'electronic':9 'files':5,6 'jungle':14 'loose':3,4 'or':12 'size':7 'th':10 'unsorted':2
                                    'search_combo'  '00poprockelectronic':17 'and':3A 'bass':4A 'breakbeat':27 'cifs9104':24 'dara':11B,12B 'dieselboy':6B,7B 'dj':8B 'dnb':29 'drum':2A 'electronic':25 'files':21,22 'grooverider':13B,14B 'jerome':9B,10B 'jungle':30 'live':1A 'loose':19,20 'or':28 'roni':15B 'set':5A 'size':16B,23 'th':26 'unsorted':18
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696840.1587982  (2021-05-22 17:20:40)
                             'size'  7455275