======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '314'
                                          'artist'  'Albertracks'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Salsa (Original Mix)'
                                           'quals'  ("['Q-MIXBEAT-3', 'Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'q-play-3', 'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', "
 "'q-vocals-1']")
                                     'discogstags'  "['house', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2018'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '127.0'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TBPM' (BPM (beats per minute))                     '127.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TDRC' (Recording time)                             '2018'
'TIT2' (Title/songname/content description)         'Salsa (Original Mix)'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Albertracks'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['house', 'electronic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.39 dB'
'TXXX:replaygain_track_peak'                        '0.613116'

========================== row from database ==========================
                                              'id'  1343826
                                            'path'  /data/Music/Bulk/00poprockelectronic/deep house/albertracks - salsa (original mix) [nervous records]DH.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  314
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  12609613
                                           'mtime'  1621085304
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic deep house albertracks salsa (original mix) [nervous records]DH electronic th techno minimal or deephouse
                                      'tag_artist'  Albertracks
                                     'tag_release'  None
                                       'tag_title'  Salsa (Original Mix)
                                             'bpm'  127.0
                                    'search_title'  'mix':4,5 'original':2,3 'salsa':1
                                   'search_artist'  'albertracks':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'albertracks':4 'deep':2 'deephouse':20 'dh':13 'electronic':15 'house':3 'minimal':18 'mix':8,9 'nervous':10,11 'or':19 'original':6,7 'records':12 'recordsdh':14 'salsa':5 'techno':17 'th':16
                                    'search_combo'  '00poprockelectronic':7 'albertracks':6B,10 'deep':8 'deephouse':26 'dh':19 'electronic':21 'house':9 'minimal':24 'mix':4A,5A,14,15 'nervous':16,17 'or':25 'original':2A,3A,12,13 'records':18 'recordsdh':20 'salsa':1A,11 'techno':23 'th':22
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-3', 'q-play-3', '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-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2018
                                     'discogstags'  ['house', 'electronic']

============================== file details ==============================
                                           'mtime'  1621085303.6684341  (2021-05-15 15:28:23)
                             'size'  12609613